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Blockchain events and hackathons

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Web3 Hackathons, Done Right: A Pragmatic Playbook for 2025

· 12 min read
Dora Noda
Software Engineer

If you want a fast route to sharpen your skills, meet co-founders, and pressure-test an idea, few environments beat a web3 hackathon. But the difference between a “fun weekend” and a “career-changing launch” is a plan.

This guide gives you a concrete, builder-first playbook: how to pick the right event, prep smart, build fast, and present with clarity—plus checklists you can copy-paste into your next hack.

TL;DR

  • Pick events intentionally. Favor ecosystems you already ship in—or ones with judges and sponsors who are perfectly aligned with your idea.
  • Decide your win condition. Are you there for learning, a specific bounty, or a finalist spot? Each choice changes your team, scope, and stack.
  • Pre-bake the boring stuff. Have your project scaffolds, auth flows, wallet connections, design system, and a demo script outline ready before the clock starts.
  • Build the smallest lovable demo. Show one killer feature loop working end-to-end. Everything else is just narrative and slides.
  • Submit like a pro. Respect the “start fresh” rules, formally register for every bounty track you target, and reserve significant time for a tight video and a clear README.

Why web3 hackathons are worth your weekend

  • Compressed learning: In a single weekend, you’ll touch infrastructure, smart contracts, front-end UX, and deployment pipelines. It’s a full development cycle in 48 hours—a learning curve that would normally take months.
  • High-signal networking: The mentors, judges, and sponsor engineers aren't just names on a website; they are concentrated in one room or Discord server, ready to give feedback. This is your chance to connect with the core developers of the protocols you use every day.
  • Real funding paths: This isn't just for bragging rights. Prize pools and follow-on grants can provide meaningful capital to keep a project going. Events like Solana’s Summer Camp have offered up to $5M in prizes and seed funding, turning weekend projects into viable startups.
  • A portfolio of proof: A public GitHub repository with a functional demo is infinitely more valuable than a bullet point on a résumé. It's tangible proof that you can build, ship, and articulate an idea under pressure.

Where to find the good ones

  • ETHGlobal: The gold standard for both in-person and asynchronous events. They feature robust judging processes, high-quality participants, and public project showcases that are perfect for inspiration.
  • Devpost: A broad marketplace for all kinds of hackathons, with strong filters for blockchain, specific protocols, and prize tracks. It's a great place to discover ecosystem-specific events.
  • DoraHacks: A platform focused on ecosystem-driven web3 hackathons and grant rounds, often with a global and community-centric feel.

Tip: Durations vary widely. A long-form async event like ETHOnline runs for multiple weeks, while an extended in-person sprint like ETHDenver’s #BUIDLathon can last up to nine days. You must plan your project’s scope accordingly.


Decode the rules (so you don’t DQ yourself)

  • “Start Fresh.” This is the most common and critical rule. Most events require that all substantial work begins after the official kickoff. Using older, pre-written code for core logic can get you disqualified from finals and partner prizes. Boilerplate is usually fine, but the secret sauce has to be new.
  • Judging structure. Understand the funnel. Often, an async screening round narrows hundreds of projects down to a finalist pool before live judging begins. Knowing this helps you focus on making your submission video and README as clear as possible for that first cut.
  • Team sizing. Don't show up with a team of ten. Many events set limits, such as the typical 2–4 person teams seen at ETHDenver. This ensures a level playing field and encourages tight collaboration.
  • Bounty mechanics. You can’t win a prize you didn’t register for. If you’re targeting sponsor bounties, you often must formally enroll your project for each specific prize through the event platform. This is a simple step that many teams forget.

Judging rubric: what “good” looks like

Across major organizers, judges are typically evaluating projects across four recurring buckets. Design your scope and demo to score points in each.

  • Technicality: Is the problem non-trivial? Does the solution involve a clever or elegant use of technology? Did you go beyond a simple front-end wrapper on a single smart contract?
  • Originality: Is there a novel mechanism, a unique user experience, or a clever remix of existing primitives? Have we seen this a hundred times before, or does it present a fresh take?
  • Practicality: Can someone use this today? A complete, end-to-end user journey, even if narrow, matters far more than a project with broad but half-finished features.
  • Usability (UI/UX/DX): Is the interface clear, fast, and pleasant to use? For developer tools, how good is the developer experience? A smooth onboarding and clear error handling can set you apart.

Team design: small, sharp, complementary

For speed and alignment, a team of two to four is the sweet spot. It's large enough to parallelize work but small enough to make decisions without endless debate.

  • Smart contracts / protocol: Owns the on-chain logic. Responsible for writing, testing, and deploying the contracts.
  • Front-end / DX: Builds the user interface. Manages wallet connections, data fetching, error states, and the final demo polish that makes the project feel real.
  • Product / story: The scope keeper and narrator. This person ensures the team stays focused on the core loop, writes the project description, and runs the final demo.
  • (Optional) Designer: A dedicated designer can be a secret weapon, preparing components, icons, and micro-interactions that elevate the project's perceived quality.

Idea selection: the P-A-C-E filter

Use this simple filter to pressure-test your ideas before writing a single line of code.

  • Pain: Does this solve a real developer or user pain point? Think wallet UX, data indexing, MEV protection, or fee abstraction. Avoid solutions looking for a problem.
  • Atomicity: Can you build and demo a single, atomic loop end-to-end in 48 hours? Not the whole vision—just one complete, satisfying user action.
  • Composable: Does your idea lean on existing primitives like oracles, account abstraction, or cross-chain messaging? Using battle-tested lego blocks helps you go further, faster.
  • Ecosystem fit: Is your project visible and relevant to the event’s judges, sponsors, and audience? Don’t pitch a complex DeFi protocol on a gaming-focused track.

If you’re bounty-driven, pick one primary and one secondary sponsor track. Spreading your focus across too many bounties dilutes your depth and chances of winning any of them.


Default stacks that fight you less

Your novelty should be in what you build, not how you build it. Stick to boring, reliable technology.

EVM track (fast path)

  • Contracts: Foundry (for its speed in testing, scripting, and running a local node).
  • Front-end: Next.js or Vite, combined with wagmi or viem and a wallet kit like RainbowKit or ConnectKit for modals and connectors.
  • Data/indexing: A hosted indexer or subgraph service if you need to query historical data. Avoid running your own infrastructure.
  • Off-chain triggers: A simple job runner or a dedicated automation service.
  • Storage: IPFS or Filecoin for assets and metadata; a simple KV store for session state.

Solana track (fast path)

  • Programs: Anchor (to cut down on boilerplate and benefit from safer defaults).
  • Client: React or a mobile framework with the Solana Mobile SDKs. Use simple hooks for RPC and program calls.
  • Data: Rely on direct RPC calls or ecosystem indexers. Cache aggressively to keep the UI snappy.
  • Storage: Arweave or IPFS for permanent asset storage if relevant.

A realistic 48-hour plan

T-24 to T-0 (before kickoff)

  • Align on your win condition (learning, bounty, finals) and target track(s).
  • Sketch the full demo loop on paper or a whiteboard. Know exactly what you’ll click and what should happen on-chain and off-chain at each step.
  • Fork a clean monorepo scaffold that includes boilerplate for both your contracts and your front-end app.
  • Pre-write your README outline and a rough draft of your demo script.

Hour 0–6

  • Validate your scope with event mentors and sponsors. Confirm the bounty criteria and ensure your idea is a good fit.
  • Set hard constraints: one chain, one primary use-case, and one "wow" moment for the demo.
  • Divide the work into 90-minute sprints. Your goal is to ship the first full vertical slice of your core loop by Hour 6.

Hour 6–24

  • Harden the critical path. Test both the happy path and common edge cases.
  • Add observability. Implement basic logs, UI toasts, and error boundaries so you can debug quickly.
  • Create a minimal landing page that clearly explains the "why" behind your project.

Hour 24–40

  • Record a backup demo video as soon as the core feature is stable. Do not wait until the last minute.
  • Start writing and editing your final submission text, video, and README.
  • If time permits, add one or two thoughtful flourishes, like great empty states, a gasless transaction, or a helpful code snippet in your docs.

Hour 40–48

  • Freeze all features. No more new code.
  • Finalize your video and submission package. Experienced winners often recommend reserving ~15% of your total time for polish and creating a video with a clear 60/40 split between explaining the problem and demoing the solution.

Demo & submission: make judges’ jobs easy

  • Open with the “why.” Start your video and README with a single sentence explaining the problem and your solution’s outcome.
  • Live the loop. Show, don't just tell. Walk through a single, credible user journey from start to finish without skipping steps.
  • Narrate your constraints. Acknowledge what you didn't build and why. Saying, “We scoped this to a single use case to ensure real users can complete the flow today,” shows focus and maturity.
  • Leave clear markers. Your README should have an architecture diagram, links to your live demo and deployed contracts, and simple, one-click steps to run the project locally.
  • Video basics. Plan your video early, script it tightly, and ensure it clearly highlights what the project does, what problem it solves, and how it works under the hood.

Bounties without burnout

  • Register for each prize you target. On some platforms, this involves an explicit “Start Work” button click.
  • Don’t chase more than two sponsor bounties unless their technologies naturally overlap in your stack.
  • In your submission, mirror their rubric. Use their keywords, reference their APIs by name, and explain how you met their specific success metrics.

After the hackathon: turn momentum into traction

  • Publish a short blog post and a social media thread with your demo link and GitHub repository. Tag the event and sponsors.
  • Apply to grants and accelerator rounds that are specifically designed for hackathon alumni and early-stage open-source projects.
  • If the reception is strong, create a simple one-week roadmap focused on bug fixes, a UX pass, and a tiny pilot with a few users. Set a hard date for a v0.1 release to maintain momentum.

Common pitfalls (and the fix)

  • Breaking “start fresh” rules. The fix: Keep any prior code completely out of scope or declare it explicitly as a pre-existing library you’re using.
  • Over-scoping. The fix: If your planned demo has three major steps, cut one. Be ruthless about focusing on the core loop.
  • Going multi-chain too early. The fix: Ship on one chain perfectly. Talk about your plans for bridges and cross-chain support in the "What's next" section of your README.
  • The last-minute polish tax. The fix: Pre-allocate a 4-6 hour block at the end of the hackathon exclusively for your README, video, and submission form.
  • Forgetting to enroll in bounties. The fix: Make this one of the first things you do after kickoff. Register for every potential prize so sponsors can find and support your team.

Checklists you can copy

Submission pack

  • Repo (MIT/Apache-2.0 license), concise README, and local run steps
  • Short Loom/MP4 demo video + a backup recording
  • Simple architecture diagram (one slide or image)
  • One-pager: problem → solution → who cares → what’s next
  • Links: live frontend, contract addresses on a block explorer

IRL packing list

  • Extension cord and power strip
  • Headphones and a decent microphone
  • HDMI/USB-C display dongles
  • Refillable water bottle and electrolytes
  • Your favorite comfortable keyboard/mouse (if you’re picky)

Rules sanity check

  • Start-fresh policy understood and followed
  • Team size is within the event’s bounds (if applicable)
  • Judging flow (async vs. live) is noted
  • All target bounties are formally registered (“Start Work” or equivalent)

  • Find events: Check out the ETHGlobal events calendar, the Devpost blockchain hub, and DoraHacks for upcoming competitions.
  • Get inspired: Browse the ETHGlobal Showcase to see winning demos and explore their code.
  • EVM scaffolding: Review the Foundry documentation and quickstart guides.
  • Solana scaffolding: Look at the Anchor documentation and its “basics” guide.
  • Video tips: Search for guides on how to craft a crisp and compelling demo video.

Final note

Hackathons reward clarity under constraint. Pick a narrow problem, lean on boring tools, and obsess over creating one delightful, end-to-end moment. Do that, and you’ll learn a tremendous amount—even if your name isn’t on the winners slide this time. And if it is, you’ll have earned it.

ETHDenver 2025: Key Web3 Trends and Insights from the Festival

· 24 min read

ETHDenver 2025, branded the “Year of The Regenerates,” solidified its status as one of the world’s largest Web3 gatherings. Spanning BUIDLWeek (Feb 23–26), the Main Event (Feb 27–Mar 2), and a post-conference Mountain Retreat, the festival drew an expected 25,000+ participants. Builders, developers, investors, and creatives from 125+ countries converged in Denver to celebrate Ethereum’s ethos of decentralization and innovation. True to its community roots, ETHDenver remained free to attend, community-funded, and overflowing with content – from hackathons and workshops to panels, pitch events, and parties. The event’s lore of “Regenerates” defending decentralization set a tone that emphasized public goods and collaborative building, even amid a competitive tech landscape. The result was a week of high-energy builder activity and forward-looking discussions, offering a snapshot of Web3’s emerging trends and actionable insights for industry professionals.

ETHDenver 2025

No single narrative dominated ETHDenver 2025 – instead, a broad spectrum of Web3 trends took center stage. Unlike last year (when restaking via EigenLayer stole the show), 2025’s agenda was a sprinkle of everything: from decentralized physical infrastructure networks (DePIN) to AI agents, from regulatory compliance to real-world asset tokenization (RWA), plus privacy, interoperability, and more. In fact, ETHDenver’s founder John Paller addressed concerns about multi-chain content by noting “95%+ of our sponsors and 90% of content is ETH/EVM-aligned” – yet the presence of non-Ethereum ecosystems underscored interoperability as a key theme. Major speakers reflected these trend areas: for example, zk-rollup and Layer-2 scaling was highlighted by Alex Gluchowski (CEO of Matter Labs/zkSync), while multi-chain innovation came from Adeniyi Abiodun of Mysten Labs (Sui) and Albert Chon of Injective.

The convergence of AI and Web3 emerged as a strong undercurrent. Numerous talks and side events focused on decentralized AI agents and “DeFi+AI” crossovers. A dedicated AI Agent Day showcased on-chain AI demos, and a collective of 14 teams (including Coinbase’s developer kit and NEAR’s AI unit) even announced the Open Agents Alliance (OAA) – an initiative to provide permissionless, free AI access by pooling Web3 infrastructure. This indicates growing interest in autonomous agents and AI-driven dApps as a frontier for builders. Hand-in-hand with AI, DePIN (decentralized physical infrastructure) was another buzzword: multiple panels (e.g. Day of DePIN, DePIN Summit) explored projects bridging blockchain with physical networks (from telecom to mobility).

Cuckoo AI Network made waves at ETHDenver 2025, showcasing its innovative decentralized AI model-serving marketplace designed for creators and developers. With a compelling presence at both the hackathon and community-led side events, Cuckoo AI attracted significant attention from developers intrigued by its ability to monetize GPU/CPU resources and easily integrate on-chain AI APIs. During their dedicated workshop and networking session, Cuckoo AI highlighted how decentralized infrastructure could efficiently democratize access to advanced AI services. This aligns directly with the event's broader trends—particularly the intersection of blockchain with AI, DePIN, and public-goods funding. For investors and developers at ETHDenver, Cuckoo AI emerged as a clear example of how decentralized approaches can power the next generation of AI-driven dApps and infrastructure, positioning itself as an attractive investment opportunity within the Web3 ecosystem.

Privacy, identity, and security remained top-of-mind. Speakers and workshops addressed topics like zero-knowledge proofs (zkSync’s presence), identity management and verifiable credentials (a dedicated Privacy & Security track was in the hackathon), and legal/regulatory issues (an on-chain legal summit was part of the festival tracks). Another notable discussion was the future of fundraising and decentralization of funding: a Main Stage debate between Dragonfly Capital’s Haseeb Qureshi and Matt O’Connor of Legion (an “ICO-like” platform) about ICOs vs. VC funding captivated attendees. This debate highlighted emerging models like community token sales challenging traditional VC routes – an important trend for Web3 startups navigating capital raising. The take-away for professionals is clear: Web3 in 2025 is multidisciplinary – spanning finance, AI, real assets, and culture – and staying informed means looking beyond any one hype cycle to the full spectrum of innovation.

Sponsors and Their Strategic Focus Areas

ETHDenver’s sponsor roster in 2025 reads like a who’s-who of layer-1s, layer-2s, and Web3 infrastructure projects – each leveraging the event to advance strategic goals. Cross-chain and multi-chain protocols made a strong showing. For instance, Polkadot was a top sponsor with a hefty $80k bounty pool, incentivizing builders to create cross-chain DApps and appchains. Similarly, BNB Chain, Flow, Hedera, and Base (Coinbase’s L2) each offered up to $50k for projects integrating with their ecosystems, signaling their push to attract Ethereum developers. Even traditionally separate ecosystems like Solana and Internet Computer joined in with sponsored challenges (e.g. Solana co-hosted a DePIN event, and Internet Computer offered an “Only possible on ICP” bounty). This cross-ecosystem presence drew some community scrutiny, but ETHDenver’s team noted that the vast majority of content remained Ethereum-aligned. The net effect was interoperability being a core theme – sponsors aimed to position their platforms as complementary extensions of the Ethereum universe.

Scaling solutions and infrastructure providers were also front and center. Major Ethereum L2s like Optimism and Arbitrum had large booths and sponsored challenges (Optimism’s bounties up to $40k), reinforcing their focus on onboarding developers to rollups. New entrants like ZkSync and Zircuit (a project showcasing an L2 rollup approach) emphasized zero-knowledge tech and even contributed SDKs (ZkSync promoted its Smart Sign-On SDK for user-friendly login, which hackathon teams eagerly used). Restaking and modular blockchain infrastructure was another sponsor interest – EigenLayer (pioneering restaking) had its own $50k track and even co-hosted an event on “Restaking & DeFAI (Decentralized AI)”, marrying its security model with AI topics. Oracles and interoperability middleware were represented by the likes of Chainlink and Wormhole, each issuing bounties for using their protocols.

Notably, Web3 consumer applications and tooling had sponsor support to improve user experience. Uniswap’s presence – complete with one of the biggest booths – wasn’t just for show: the DeFi giant used the event to announce new wallet features like integrated fiat off-ramps, aligning with its sponsorship focus on DeFi usability. Identity and community-focused platforms like Galxe (Gravity) and Lens Protocol sponsored challenges around on-chain social and credentialing. Even mainstream tech companies signaled interest: PayPal and Google Cloud hosted a stablecoin/payments happy hour to discuss the future of payments in crypto. This blend of sponsors shows that strategic interests ranged from core infrastructure to end-user applications – all converging at ETHDenver to provide resources (APIs, SDKs, grants) to developers. For Web3 professionals, the heavy sponsorship from layer-1s, layer-2s, and even Web2 fintechs highlights where the industry is investing: interoperability, scalability, security, and making crypto useful for the next wave of users.

Hackathon Highlights: Innovative Projects and Winners

At the heart of ETHDenver is its legendary #BUIDLathon – a hackathon that has grown into the world’s largest blockchain hackfest with thousands of developers. In 2025 the hackathon offered a record $1,043,333+ prize pool to spur innovation. Bounties from 60+ sponsors targeted key Web3 domains, carving the competition into tracks such as: DeFi & AI, NFTs & Gaming, Infrastructure & Scalability, Privacy & Security, and DAOs & Public Goods. This track design itself is insightful – for example, pairing DeFi with AI hints at the emergence of AI-driven financial applications, while a dedicated Public Goods track reaffirms community focus on regenerative finance and open-source development. Each track was backed by sponsors offering prizes for best use of their tech (e.g. Polkadot and Uniswap for DeFi, Chainlink for interoperability, Optimism for scaling solutions). The organizers even implemented quadratic voting for judging, allowing the community to help surface top projects, with final winners chosen by expert judges.

The result was an outpouring of cutting-edge projects, many of which offer a glimpse into Web3’s future. Notable winners included an on-chain multiplayer game “0xCaliber”, a first-person shooter that runs real-time blockchain interactions inside a classic FPS game. 0xCaliber wowed judges by demonstrating true on-chain gaming – players buy in with crypto, “shoot” on-chain bullets, and use cross-chain tricks to collect and cash out loot, all in real time. This kind of project showcases the growing maturity of Web3 gaming (integrating Unity game engines with smart contracts) and the creativity in merging entertainment with crypto economics. Another category of standout hacks were those merging AI with Ethereum: teams built “agent” platforms that use smart contracts to coordinate AI services, inspired by the Open Agents Alliance announcement. For example, one hackathon project integrated AI-driven smart contract auditors (auto-generating security test cases for contracts) – aligning with the decentralized AI trend observed at the conference.

Infrastructure and tooling projects were also prominent. Some teams tackled account abstraction and user experience, using sponsor toolkits like zkSync’s Smart Sign-On to create wallet-less login flows for dApps. Others worked on cross-chain bridges and Layer-2 integrations, reflecting ongoing developer interest in interoperability. In the Public Goods & DAO track, a few projects addressed real-world social impact, such as a dApp for decentralized identity and aid to help the homeless (leveraging NFTs and community funds, an idea reminiscent of prior ReFi hacks). Regenerative finance (ReFi) concepts – like funding public goods via novel mechanisms – continued to appear, echoing ETHDenver’s regenerative theme.

While final winners were being celebrated by the end of the main event, the true value was in the pipeline of innovation: over 400 project submissions poured in, many of which will live on beyond the event. ETHDenver’s hackathon has a track record of seeding future startups (indeed, some past BUIDLathon projects have grown into sponsors themselves). For investors and technologists, the hackathon provided a window into bleeding-edge ideas – signaling that the next wave of Web3 startups may emerge in areas like on-chain gaming, AI-infused dApps, cross-chain infrastructure, and solutions targeting social impact. With nearly $1M in bounties disbursed to developers, sponsors effectively put their money where their mouth is to cultivate these innovations.

Networking Events and Investor Interactions

ETHDenver is not just about writing code – it’s equally about making connections. In 2025 the festival supercharged networking with both formal and informal events tailored for startups, investors, and community builders. One marquee event was the Bufficorn Ventures (BV) Startup Rodeo, a high-energy showcase where 20 hand-picked startups demoed to investors in a science-fair style expo. Taking place on March 1st in the main hall, the Startup Rodeo was described as more “speed dating” than pitch contest: founders manned tables to pitch their projects one-on-one as all attending investors roamed the arena. This format ensured even early-stage teams could find meaningful face time with VCs, strategics, or partners. Many startups used this as a launchpad to find customers and funding, leveraging the concentrated presence of Web3 funds at ETHDenver.

On the conference’s final day, the BV BuffiTank Pitchfest took the spotlight on the main stage – a more traditional pitch competition featuring 10 of the “most innovative” early-stage startups from the ETHDenver community. These teams (separate from the hackathon winners) pitched their business models to a panel of top VCs and industry leaders, competing for accolades and potential investment offers. The Pitchfest illustrated ETHDenver’s role as a deal-flow generator: it was explicitly aimed at teams “already organized…looking for investment, customers, and exposure,” especially those connected to the SporkDAO community. The reward for winners wasn’t a simple cash prize but rather the promise of joining Bufficorn Ventures’ portfolio or other accelerator cohorts. In essence, ETHDenver created its own mini “Shark Tank” for Web3, catalyzing investor attention on the community’s best projects.

Beyond these official showcases, the week was packed with investor-founder mixers. According to a curated guide by Belong, notable side events included a “Meet the VCs” Happy Hour hosted by CertiK Ventures on Feb 27, a StarkNet VC & Founders Lounge on March 1, and even casual affairs like a “Pitch & Putt” golf-themed pitch event. These gatherings provided relaxed environments for founders to rub shoulders with venture capitalists, often leading to follow-up meetings after the conference. The presence of many emerging VC firms was also felt on panels – for example, a session on the EtherKnight Stage highlighted new funds like Reflexive Capital, Reforge VC, Topology, Metalayer, and Hash3 and what trends they are most excited about. Early indications suggest these VCs were keen on areas like decentralized social media, AI, and novel Layer-1 infrastructure (each fund carving a niche to differentiate themselves in a competitive VC landscape).

For professionals looking to capitalize on ETHDenver’s networking: the key takeaway is the value of side events and targeted mixers. Deals and partnerships often germinate over coffee or cocktails rather than on stage. ETHDenver 2025’s myriad investor events demonstrate that the Web3 funding community is actively scouting for talent and ideas even in a lean market. Startups that came prepared with polished demos and a clear value proposition (often leveraging the event’s hackathon momentum) found receptive audiences. Meanwhile, investors used these interactions to gauge the pulse of the developer community – what problems are the brightest builders solving this year? In summary, ETHDenver reinforced that networking is as important as BUIDLing: it’s a place where a chance meeting can lead to a seed investment or where an insightful conversation can spark the next big collaboration.

A subtle but important narrative throughout ETHDenver 2025 was the evolving landscape of Web3 venture capital itself. Despite the broader crypto market’s ups and downs, investors at ETHDenver signaled strong appetite for promising Web3 projects. Blockworks reporters on the ground noted “just how much private capital is still flowing into crypto, undeterred by macro headwinds,” with seed stage valuations often sky-high for the hottest ideas. Indeed, the sheer number of VCs present – from crypto-native funds to traditional tech investors dabbling in Web3 – made it clear that ETHDenver remains a deal-making hub.

Emerging thematic focuses could be discerned from what VCs were discussing and sponsoring. The prevalence of AI x Crypto content (hackathon tracks, panels, etc.) wasn’t only a developer trend; it reflects venture interest in the “DeFi meets AI” nexus. Many investors are eyeing startups that leverage machine learning or autonomous agents on blockchain, as evidenced by venture-sponsored AI hackhouses and summits. Similarly, the heavy focus on DePIN and real-world asset (RWA) tokenization indicates that funds see opportunity in projects that connect blockchain to real economy assets and physical devices. The dedicated RWA Day (Feb 26) – a B2B event on the future of tokenized assets – suggests that venture scouts are actively hunting in that arena for the next Goldfinch or Centrifuge (i.e. platforms bringing real-world finance on-chain).

Another observable trend was a growing experimentation with funding models. The aforementioned debate on ICOs vs VCs wasn’t just conference theatrics; it mirrors a real venture movement towards more community-centric funding. Some VCs at ETHDenver indicated openness to hybrid models (e.g. venture-supported token launches that involve community in early rounds). Additionally, public goods funding and impact investing had a seat at the table. With ETHDenver’s ethos of regeneration, even investors discussed how to support open-source infrastructure and developers long-term, beyond just chasing the next DeFi or NFT boom. Panels like “Funding the Future: Evolving Models for Onchain Startups” explored alternatives such as grants, DAO treasury investments, and quadratic funding to supplement traditional VC money. This points to an industry maturing in how projects are capitalized – a mix of venture capital, ecosystem funds, and community funding working in tandem.

From an opportunity standpoint, Web3 professionals and investors can glean a few actionable insights from ETHDenver’s venture dynamics: (1) Infrastructure is still king – many VCs expressed that picks-and-shovels (L2 scaling, security, dev tools) remain high-value investments as the industry’s backbone. (2) New verticals like AI/blockchain convergence and DePIN are emerging investment frontiers – getting up to speed in these areas or finding startups there could be rewarding. (3) Community-driven projects and public goods might see novel funding – savvy investors are figuring out how to support these sustainably (for instance, investing in protocols that enable decentralized governance or shared ownership). Overall, ETHDenver 2025 showed that while the Web3 venture landscape is competitive, it’s brimming with conviction: capital is available for those building the future of DeFi, NFTs, gaming, and beyond, and even bear-market born ideas can find backing if they target the right trend.

Developer Resources, Toolkits, and Support Systems

ETHDenver has always been builder-focused, and 2025 was no exception – it doubled as an open-source developer conference with a plethora of resources and support for Web3 devs. During BUIDLWeek, attendees had access to live workshops, technical bootcamps, and mini-summits spanning various domains. For example, developers could join a Bleeding Edge Tech Summit to tinker with the latest protocols, or drop into an On-Chain Legal Summit to learn about compliant smart contract development. Major sponsors and blockchain teams ran hands-on sessions: Polkadot’s team hosted hacker houses and workshops on spinning up parachains; EigenLayer led a “restaking bootcamp” to teach devs how to leverage its security layer; Polygon and zkSync gave tutorials on building scalable dApps with zero-knowledge tech. These sessions provided invaluable face-time with core engineers, allowing developers to get help with integration and learn new toolkits first-hand.

Throughout the main event, the venue featured a dedicated #BUIDLHub and Makerspace where builders could code in a collaborative environment and access mentors. ETHDenver’s organizers published a detailed BUIDLer Guide and facilitated an on-site mentorship program (experts from sponsors were available to unblock teams on technical issues). Developer tooling companies were also present en masse – from Alchemy and Infura (for blockchain APIs) to Hardhat and Foundry (for smart contract development). Many unveiled new releases or beta tools at the event. For instance, MetaMask’s team previewed a major wallet update featuring gas abstraction and an improved SDK for dApp developers, aiming to simplify how apps cover gas fees for users. Several projects launched SDKs or open-source libraries: Coinbase’s “Agent Kit” for AI agents and the collaborative Open Agents Alliance toolkit were introduced, and Story.xyz promoted its Story SDK for on-chain intellectual property licensing during their own hackathon event.

Bounties and hacker support further augmented the developer experience. With over 180 bounties offered by 62 sponsors, hackers effectively had a menu of specific challenges to choose from, each coming with documentation, office hours, and sometimes bespoke sandboxes. For example, Optimism’s bounty challenged devs to use the latest Bedrock opcodes (with their engineers on standby to assist), and Uniswap’s challenge provided access to their new API for off-ramp integration. Tools for coordination and learning – like the official ETHDenver mobile app and Discord channels – kept developers informed of schedule changes, side quests, and even job opportunities via the ETHDenver job board.

One notable resource was the emphasis on quadratic funding experiments and on-chain voting. ETHDenver integrated a quadratic voting system for hackathon judging, exposing many developers to the concept. Additionally, the presence of Gitcoin and other public goods groups meant devs could learn about grant funding for their projects after the event. In sum, ETHDenver 2025 equipped developers with cutting-edge tools (SDKs, APIs), expert guidance, and follow-on support to continue their projects. For industry professionals, it’s a reminder that nurturing the developer community – through education, tooling, and funding – is critical. Many of the resources highlighted (like new SDKs, or improved dev environments) are now publicly available, offering teams everywhere a chance to build on the shoulders of what was shared at ETHDenver.

Side Events and Community Gatherings Enriching the ETHDenver Experience

What truly sets ETHDenver apart is its festival-like atmosphere – dozens of side events, both official and unofficial, created a rich tapestry of experiences around the main conference. In 2025, beyond the National Western Complex where official content ran, the entire city buzzed with meetups, parties, hackathons, and community gatherings. These side events, often hosted by sponsors or local Web3 groups, significantly contributed to the broader ETHDenver experience.

On the official front, ETHDenver’s own schedule included themed mini-events: the venue had zones like an NFT Art Gallery, a Blockchain Arcade, a DJ Chill Dome, and even a Zen Zone to decompress. The organizers also hosted evening events such as opening and closing parties – e.g., the “Crack’d House” unofficial opening party on Feb 26 by Story Protocol, which blended an artsy performance with hackathon award announcements. But it was the community-led side events that truly proliferated: according to an event guide, over 100 side happenings were tracked on the ETHDenver Luma calendar.

Some examples illustrate the diversity of these gatherings:

  • Technical Summits & Hacker Houses: ElizaOS and EigenLayer ran a 9-day Vault AI Agent Hacker House residency for AI+Web3 enthusiasts. StarkNet’s team hosted a multi-day hacker house culminating in a demo night for projects on their ZK-rollup. These provided focused environments for developers to collaborate on specific tech stacks outside the main hackathon.
  • Networking Mixers & Parties: Every evening offered a slate of choices. Builder Nights Denver on Feb 27, sponsored by MetaMask, Linea, EigenLayer, Wormhole and others, brought together innovators for casual talks over food and drink. 3VO’s Mischief Minded Club Takeover, backed by Belong, was a high-level networking party for community tokenization leaders. For those into pure fun, the BEMO Rave (with Berachain and others) and rAIve the Night (an AI-themed rave) kept the crypto crowd dancing late into the night – blending music, art, and crypto culture.
  • Special Interest Gatherings: Niche communities found their space too. Meme Combat was an event purely for meme enthusiasts to celebrate the role of memes in crypto. House of Ink catered to NFT artists and collectors, turning an immersive art venue (Meow Wolf Denver) into a showcase for digital art. SheFi Summit on Feb 26 brought together women in Web3 for talks and networking, supported by groups like World of Women and Celo – highlighting a commitment to diversity and inclusion.
  • Investor & Content Creator Meetups: We already touched on VC events; additionally, a KOL (Key Opinion Leaders) Gathering on Feb 28 let crypto influencers and content creators discuss engagement strategies, showing the intersection of social media and crypto communities.

Crucially, these side events weren’t just entertainment – they often served as incubators for ideas and relationships in their own right. For instance, the Tokenized Capital Summit 2025 delved into the future of capital markets on-chain, likely sparking collaborations between fintech entrepreneurs and blockchain developers in attendance. The On-Chain Gaming Hacker House provided a space for game developers to share best practices, which may lead to cross-pollination among blockchain gaming projects.

For professionals attending large conferences, ETHDenver’s model underscores that value is found off the main stage as much as on it. The breadth of unofficial programming allowed attendees to tailor their experience – whether one’s goal was to meet investors, learn a new skill, find a co-founder, or just unwind and build camaraderie, there was an event for that. Many veterans advise newcomers: “Don’t just attend the talks – go to the meetups and say hi.” In a space as community-driven as Web3, these human connections often translate into DAO collaborations, investment deals, or at the very least, lasting friendships that span continents. ETHDenver 2025’s vibrant side scene amplified the core conference, turning one week in Denver into a multi-dimensional festival of innovation.

Key Takeaways and Actionable Insights

ETHDenver 2025 demonstrated a Web3 industry in full bloom of innovation and collaboration. For professionals in the space, several clear takeaways and action items emerge from this deep dive:

  • Diversification of Trends: The event made it evident that Web3 is no longer monolithic. Emerging domains like AI integration, DePIN, and RWA tokenization are as prominent as DeFi and NFTs. Actionable insight: Stay informed and adaptable. Leaders should allocate R&D or investment into these rising verticals (e.g. exploring how AI could enhance their dApp, or how real-world assets might be integrated into DeFi platforms) to ride the next wave of growth.
  • Cross-Chain is the Future: With major non-Ethereum protocols actively participating, the walls between ecosystems are lowering. Interoperability and multi-chain user experiences garnered huge attention, from MetaMask adding Bitcoin/Solana support to Polkadot and Cosmos-based chains courting Ethereum developers. Actionable insight: Design for a multi-chain world. Projects should consider integrations or bridges that tap into liquidity and users on other chains, and professionals may seek partnerships across communities rather than staying siloed.
  • Community & Public Goods Matter: The “Year of the Regenerates” theme wasn’t just rhetoric – it permeated the content via public goods funding discussions, quadratic voting for hacks, and events like SheFi Summit. Ethical, sustainable development and community ownership are key values in the Ethereum ethos. Actionable insight: Incorporate regenerative principles. Whether through supporting open-source initiatives, using fair launch mechanisms, or aligning business models with community growth, Web3 companies can gain goodwill and longevity by not being purely extractive.
  • Investor Sentiment – Cautious but Bold: Despite bear market murmurs, ETHDenver showed that VCs are actively scouting and willing to bet big on Web3’s next chapters. However, they are also rethinking how to invest (e.g. more strategic, perhaps more oversight on product-market fit, and openness to community funding). Actionable insight: If you’re a startup, focus on fundamentals and storytelling. The projects that stood out had clear use cases and often working prototypes (some built in a weekend!). If you’re an investor, the conference affirmed that infrastructure (L2s, security, dev tools) remains high-priority, but differentiating via theses in AI, gaming, or social can position a fund at the forefront.
  • Developer Experience is Improving: ETHDenver highlighted many new toolkits, SDKs, and frameworks lowering the barrier for Web3 development – from account abstraction tools to on-chain AI libraries. Actionable insight: Leverage these resources. Teams should experiment with the latest dev tools unveiled (e.g. try out that zkSync Smart SSO for easier logins, or use the Open Agents Alliance resources for an AI project) to accelerate their development and stay ahead of the competition. Moreover, companies should continue engaging with hackathons and open developer forums as a way to source talent and ideas; ETHDenver’s success in turning hackers into founders is proof of that model.
  • The Power of Side Events: Lastly, the explosion of side events taught an important lesson in networking – opportunities often appear in casual settings. A chance encounter at a happy hour or a shared interest at a small meetup can create career-defining connections. Actionable insight: For those attending industry conferences, plan beyond the official agenda. Identify side events aligned with your goals (whether it’s meeting investors, learning a niche skill, or recruiting talent) and be proactive in engaging. As seen in Denver, those who immersed themselves fully in the week’s ecosystem walked away with not just knowledge, but new partners, hires, and friends.

In conclusion, ETHDenver 2025 was a microcosm of the Web3 industry’s momentum – a blend of cutting-edge tech discourse, passionate community energy, strategic investment moves, and a culture that mixes serious innovation with fun. Professionals should view the trends and insights from the event as a roadmap for where Web3 is headed. The actionable next step is to take these learnings – whether it’s a newfound focus on AI, a connection made with an L2 team, or inspiration from a hackathon project – and translate them into strategy. In the spirit of ETHDenver’s favorite motto, it’s time to #BUIDL on these insights and help shape the decentralized future that so many in Denver came together to envision.

Join the Sui Overflow Hackathon and Win $5000 in Sui with BlockEden.xyz!

· 2 min read
Dora Noda
Software Engineer

BlockEden.xyz is excited to announce our Ecosystem Project Prize for participants in the Sui Overflow hackathon during April 21 - June 15, 2024. We're offering a total prize pool of $5000 in Sui for innovative projects that utilize our RPC and Indexer services.

Join the Sui Overflow Hackathon and Win $5000 in Sui with BlockEden.xyz!

How to Participate

  1. Register for Sui Overflow: Ensure you're signed up for the Sui Overflow hackathon.
  2. Integrate BlockEden.xyz: Use our RPC and Indexer services in your project.
  3. Submit Your Project: Complete your project and submit it by the hackathon deadline.

Prize Distribution

  • 1st Place: $1500 in Sui (x 1 winner)
  • 2nd Place: $1000 in Sui (x 2 winners)
  • 3rd Place: $100 in Sui (x 15 winners)

$5000 in total for 18 winners, distributed in SUI.

Judging Criteria

  • Innovation: How creatively you use BlockEden.xyz services.
  • Impact: Potential impact on the Sui ecosystem.
  • Functionality: The project’s technical performance.

Why BlockEden.xyz?

  • Reliable RPC services
  • Comprehensive Indexer solutions
  • Seamless integration

Get Started

  1. Visit BlockEden.xyz: Sign up and access our services at https://blockeden.xyz/auth/sign-up/ and then create your API access key.
  2. Explore Our Documentation: Detailed guides to help you integrate https://blockeden.xyz/docs/sui/.
  3. Join the Hackathon: Start building and bring your ideas to life.

Make your mark in the Sui ecosystem with BlockEden.xyz!

Contact Us

Connect with our team for support and to share your innovative ideas:

😆 Happy hacking!