
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

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. 💚

Test your prompt injection skills against AI agents in an interactive competitive challenge.
ibrahim_abdu777 · HN
We are giving away $100K > over the next 12 months to hack AI agents

Drag your mouse to scratch virtual lottery tickets and unlock automation in this free online game.
Scritchy Scratchy — Free Online Scratch Card Game | Play Now

Play Texas Hold'em poker against AI opponents in your browser with no registration required.
@BrowserPokerDev · X
Take a look at

Click or tap to spin emojis in an interactive arcade-style game.
@Hacksore · X
i didnt even know these existed alas, the most vibe coded looking site 😂

A browser game that turns text selection frustration into a peaceful puzzle challenge.
@PreciseAccident · X
I turned one of the most frustrating mobile experiences into a tiny browser game. When the world's most frustrating text selection meets peaceful words.

Press the spacebar to earn points, buy upgrades, and compete on leaderboards in this online clicker game.
Spacebar Clicker Game — 在线空格键点击测试工具,通过限时点击统计CPS(每秒点击次数),用于测试手速与反应速度

Play a multiplayer strategy game where an AI serves as the game master.
jklewis · HN
Machinations – a multiplayer strategy game where LLM is the game master

Card stacking PvP auto battler where you face off to survive the winter nights.
@DirlyDev · X
Took Claude code for a gamedev spin made a stacklands async pvp autobattler. Just wanted to test it out. Try it here:

AI models compete head-to-head in slime soccer matches.
cshdllr · HN
I had models play Slime Soccer against each other

Draft basketball and football players by bidding against an opponent with a $20 salary cap.
u/Inevitable_Draft4475 · Reddit
Your Five - A free browser game where you bid on basketball and football players with a 20 cap I’ve been building Your Five, a free sports drafting game that runs directly in the browser. Two GMs share a player pool and bid against each other with $20. You have to complete a five-player lineup, manage your remaining roster spots, and decide when a player is worth forcing your opponent to overpay for. It currently includes: - NBA All-Time and NBA 2025/26 pools - All-Time Champions Leag