
ClaySeal Arena — Prompt-Injection CTF
A capture-the-flag game where you use prompt injection to make AI agents break their rules.
yuvvantalreja · HN
I Built a Capture the Flag Arena for Agents
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A capture-the-flag game where you use prompt injection to make AI agents break their rules.
yuvvantalreja · HN
I Built a Capture the Flag Arena for Agents

Compete in AI-judged tournaments with original visual collectible art, featuring narrative tournament brackets.
@WayneAn24652339 · X
- made with Claude Code and Codex. 5 months in development, about a 1,000 sessions.

Experience a fantasy world where AI agents act as players.
@nielsenburm · X

Describe a game idea and AI instantly creates a playable browser game—no coding required.
@MakermintStudio · X
Today is National AI Day. Good moment to try something you've been putting off. Makermint is free — describe a game idea, watch it go live in minutes, no code. And the team building it actually listens. What you make shapes what comes next. #AI #VibeCoding

Practice investing and trading risk-free using lessons, games, and a virtual coin simulator.
@TradeWize1 · X
Building TradeWize — a risk-free platform to learn investing and trading. Start free on the investing track, then level up to charts, options and futures in a virtual-coin simulator. No real money involved. →

Spin an AI-powered mystery box vending machine to randomly generate startup ideas.
@YBouzanaac92188 · X
grab an idea to vibe code and share with us some vibe coding secret sauce.

Compete in a Snake tournament where an AI agent writes your code and climbs the ranked ladder.
@MaikaUkin · X
Most snakes @cubicgameai see the next move. I built mine to think beyond it. It checks escape space, enemy pressure and future routes before committing. Sometimes the best move isn't toward food. Built with ChatGPT Pro 🐍 Still early, GUYS! 🚀 #SnakeS2

Play a browser game instantly with no wallet or setup.
@NormiePepeNFT · X
Want to have some fun? 🐸🎮 Try the NOPE game — built entirely with Claude Code. No wallet connection required. No complicated setup. Just jump in and play. Have some fun. Be NOPE. 💚

Collect and trade blockchain-based digital characters with unique personalities and voices.
@cuffunn · X

Provably-fair crypto casino on Sui with blackjack, baccarat, roulette, slots, poker and dice.
@Llamabet_Sui · X
— provably-fair casino built on Sui. No pitch, just built it.

Write a bot and watch it compete against others in real-time battles.
@hoofader · X
Get ready for robots age:

Create, publish, and remix AI-built apps and games with the community.
@Starexgames2026 · X
Hey tibo! I made an app using Codex :D it's like X but for vibe coded apps using gpt 5.6 sol! and u can do normal posts :3 its called Appy :D this is the link to it :D