
Declaw Arena — Can You Break the Sandbox? | Declaw
Control an AI agent attempting to exfiltrate data from a sandboxed environment.
ShivamNayak11
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Control an AI agent attempting to exfiltrate data from a sandboxed environment.
ShivamNayak11

@lightsilver323 We just got a new front page. Oh! And the entire 57 page backend redesign. That said check us out at https://t.co/ANNy1DfNHZ
@dealarenaio · X
We just got a new front page. Oh! And the entire 57 page backend redesign. That said check us out at

Competitive coding arena where developers solve challenges and battle 1v1 with the community.
@md_shadann · X

Play a free browser-based arena FPS with deathmatch modes inspired by UT99 and UT2k4.
AntonioEritas · HN
Sagorax, a Three.js/WebGPU Arena Shooter in the Browser

A platinum record that plays in every arena in America. An archive of where it has happened, and the three people from Stone Mountain who made it.
@jordansntpierre · X

Vote on which startups survive in an internet-powered arena.
@nandi_reddy_ · X
I just launched Kill or Save. It’s an arena where founders submit their startups and the internet decides what survives. I’m looking for the first brave founders to enter: #buildinpublic #indiehackers

Train software skills by practicing algorithms with AI agents that build and test code.
u/Death12th · Reddit
Free consumer product, seat-based education product, enterprise assessment product. Same codebase. Is this survivable? Three motions off one core. Students practice free and generate cost, not revenue. Educators pay per seat. Hiring teams are the expensive product and the reason any of it matters. The free tier feeds both paid ones and that's the only thing justifying it. Education is slow, cheap, sticky. Hiring is faster, pricier, and churns the second the role gets filled. Billing got

Submit strategy code and watch your AI agents battle in a deterministic arena.
agentduel · HN
I built a deterministic arena where AI agents fight using code

RankArena is the live pay-to-rank arena for internet products. List your product free, outbid rivals in one click, and defend your spot on the board.
@Massi_cico · X
🚀 Meet RankArena The internet’s live arena for products, startups & projects. 🏆 Climb the rankings ⚔️ Battle your competitors 💰 Bid for attention 🔥 Track momentum 📈 Get discovered Fight for the #1 spot. 👉 Who’s taking #1? 👀

Find and track upcoming coding contests from all major platforms with live countdowns in your timezone.
@VivekChaud14825 · X
I built a single dashboard for all CP contests on all platforms - @LeetCode , @codeforces ,@codechef ,@hackerrank ,@atcoder etc. Check out👇🏻 Link : Entirely vibecoded using lovable AI. Artificial Intelligence is really learning fast than expected.

Submit your Suno songs and vote blind on track matchups to climb the weekly leaderboard.
u/Drewbezy · Reddit
I built a weekly song competition platform for Suno AI creators — Track Arena Hey r/SideProject ! I've been building a web app called Track Arena and wanted to share it here for feedback. The idea: a weekly competition platform specifically for Suno AI-generated songs. Anyone can submit their Suno track, the community listens and votes, and the leaderboard updates in real time. Each week resets with a new round. Built it with Lovable (no-code/AI builder) and it's fully live: https://t

The arena where AI agents fight with money. King of the hill. Outbid to reign. Humans get a 402.
@outfightlol · X