Developers Experiment With Somnia Data Streams in Mini Hackathon

Developers from around the world participated in Somnia’s mini hackathon, creating some of the first ever Data Streams applications. Today we’ll spotlight some of these developers and their projects to give the community a behind the scenes look at the early experiments happening with Data Streams.

Data Streams is Somnia’s real-time data subscription feature that eliminates polling delays by sending instant push notifications of blockchain state changes directly to applications. The hackathon challenged developers to implement SDS in a simple application on Somnia’s testnet.

Let’s take a look at what the Somniacs created!

Aegis Assault

Aegis Assault is a wave-based arena shooter where players defend the Aegis Core against evolving enemies while earning XP-based upgrades and unlocking NFT ship skins and soulbound achievement tokens. Every run is logged to Somnia blockchain via the Streams SDK, creating verifiable and immutable leaderboards where scores cannot be manipulated and player progress persists across sessions through wallet authentication and onchain score storage. The game features an AI Strategy Assistant powered by Amazon Q that tracks performance statistics like final score, time survived, enemy kill count, and final build choices, then analyzes this data to offer personalized advice on upgrade priorities, survival tactics, and improvement areas.

StreamWatchDAO

StreamWatchDAO demonstrates how Somnia Data Streams can power real-time DAO governance by providing instant proposal indexing, real-time vote streaming, and lightning-fast data reads that eliminate the fragmented dashboards and slow updates that often contribute to low participation.

StreamWatchDAO tracks onchain proposal and voting activity in real time through live, decentralized data streams, allowing DAO members to observe every governance action instantly without relying on centralized databases or slow indexing services. By streaming proposal submissions and vote events as they occur, the platform enables better participation and higher transparency in decentralized governance.

DeFi Stream Insight

DeFi Stream Insight is a monitoring dashboard for DeFi portfolios that uses Somnia Data Streams to provide real-time token balances, yield performance tracking, and transaction flows from connected wallets. The platform offers live portfolio value updates, real-time transaction streaming, staking position monitoring with reward tracking, and price alerts that trigger based on real-time updates. DeFi Stream Insight demonstrates how Data Streams can power the instant portfolio visibility and transaction monitoring that DeFi users need without the polling delays of traditional dashboard applications.

ChainGuard

ChainGuard is a security monitoring engine for Somnia Network that uses Data Streams to detect live smart contract exploits through behavioral transaction analysis rather than static code scanning. The platform monitors runtime behavior to identify complex attack patterns including flash loans, governance takeovers, MEV bots, transaction floods, and reconnaissance attacks, addressing the challenge that over 70% of DeFi exploits involve behavioral patterns that unfold across multiple transactions rather than simple code flaws.

The system combines behavioral detection with AI validation through Gemini API to classify exploits and assign confidence scores, providing a real-time dashboard with WebSocket-driven updates that shows live risk feeds, historical insights, and contract watchlist management. By using Somnia Data Streams to monitor Somnia’s high transaction throughput and detect multi-step attacks as they unfold, ChainGuard demonstrates how SDS can power security infrastructure that reduces exploit detection time from hours to seconds for DeFi protocols building on the network.

Battle Arena

Battle Arena is a real-time multiplayer space shooter that uses Somnia Data Streams to create instant leaderboard updates, live achievement tracking, and spectator mode capabilities. The game features an ERC721 NFT system with dynamic score-based NFTs and rarity tiers, onchain leaderboards with gas-efficient management, and champion rewards with achievement unlocks. Battle Arena uses SDS subscriptions to eliminate the 5-15 second delays and constant API polling that create poor user experiences in traditional blockchain applications.

Curious Quench

Curious Quench is a web3 application designed to help smokers quit the habit. Users track daily cigarette consumption, set daily limits, and earn $QUENCH tokens based on their progress through a rank system that rewards better performance. The platform provides transparent onchain tracking of daily submissions and token rewards, with real-time notifications that deliver instant feedback when users earn $QUENCH tokens for staying below their daily limits. The gamified approach turns behavioral health tracking into measurable, verifiable progress where achievements are recorded on the blockchain and rewarded with tokens.

Somnia Stream Studio

Somnia Stream Studio is a developer tool that provides a visual interface for working with Somnia Data Streams, eliminating the need to write boilerplate code, manage environment files, and run CLI scripts to test stream functionality. The platform features a visual schema builder where developers add fields, select types, and register schemas with one click instead of writing error-prone schema strings manually. Stream Studio abstracts the complexity of working with Data Streams into a no-code interface, demonstrating how developer tooling can make it easier to prototype, test, and monitor real-time blockchain data streams without building custom frontends or managing deployment scripts.

Stream Beat

StreamBeat is a play-to-earn rhythm gaming platform featuring two game modes (StreamBeat rhythm game and Simon memory game) where players compete for $BEAT tokens with leaderboards that update instantly through Somnia Data Streams. When a player submits a score in one browser tab, the leaderboard updates automatically in all other connected tabs without any refresh, demonstrating real-time updates across all clients as scores arrive onchain. StreamBeat features an anti-cheat system where a trusted backend validates every score before blockchain submission and pays gas fees for players, ensuring fair competition while making gameplay seamless. Players connect wallets, purchase $BEAT tokens with $SOMI, mint Gem NFTs to unlock games, then compete in rhythm challenges with combo multipliers or memory sequences with speed-based scoring, watching their rank change instantly as other players submit scores through real-time leaderboard updates powered by Data Streams.

Nexus Bid

NexusBid is an NFT auction platform that uses Somnia Data Streams to create responsive real-time bidding experiences that eliminate the 3-5 second delays and stale state updates that make competitive auctions nearly impossible on traditional blockchain marketplaces. The platform creates a real-time layer where bidders see auction updates, place bids, and receive synchronized state changes instantly while preserving blockchain security by keeping all core transactions onchain with proper validation and settlement. NexusBid handles deposits, refunds, platform fees, and NFT transfers automatically, providing sellers with a plug-and-play auction system and giving bidders the smooth, immediate feedback required for competitive bidding. By using Data Streams to synchronize auction state across all participants without forcing users to wait for blockchain confirmations between each bid, NexusBid demonstrates how real-time data infrastructure can enable the kind of fast-paced marketplace experiences that have been impractical on slower blockchains where delayed updates destroy the competitive dynamics that make auctions compelling.

So-Mines

Somnia Mines is an onchain game that uses Somnia Data Streams and smart contracts to make every outcome, event, and reward verifiable on the blockchain, eliminating the hidden backend logic of traditional Web2 games. The platform stores round results, winning numbers, payouts, and state transitions through SDS, with rounds triggered automatically by smart contracts to ensure no human interference in game execution. Players see round changes instantly through SDS polling and event-driven updates, creating responsive gameplay that feels as smooth as Web2 while maintaining the transparency and verifiability of web3. Total pools, winners, and payouts are visible to anyone onchain, demonstrating how Data Streams can power real-time gaming experiences where fairness is provable and game logic runs entirely on the blockchain rather than centralized servers.

The Data Streams Difference

The hackathon projects highlighted here demonstrate how Data Streams allows developers to build prediction markets that feel alive, games where leaderboards update instantly, social platforms without refresh buttons, and security systems that detect exploits in real time. Data Streams changes when applications learn about state changes, turning polling delays into push notifications so web3 applications can match the immediacy users expect from modern software while preserving the decentralization and verifiability that make blockchain valuable.

Check out the Data Streams website and sign up for the mailing list to be the first to find out about new updates!