
Playground — Fabraix
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
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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

Discuss and debate topics with others through text, voice, and video.
@nameisnotanoun · X

Complete quests to test Unicity Protocol infrastructure and earn XP.
@77auv7 · X
智能体最缺的不是算力,是底层安全。 @unicity_labs 社区版上线了,专为 AI Agent 打造的模块化 OS,走 Rust 微内核控制权限和成本,不用担心 Agent 乱跑。 尝鲜入口👇 #SphereQuests

Stream your Claude Code sessions live with instant replay and sharing capabilities.
malviyamukul · HN
Liveshortly - stream and pair prompt with ai agents

Practice typing with AI feedback, real-time scores, and personalized drills.
@AmitGajbhare · X
We build - a modern typing platform that helps people improve typing speed and accuracy with AI-powered practice, real-time feedback, progress tracking

Match with friends based on shared values through question-based comparisons.
zloy88 · HN
ValuePair – a friendship app that cares about values first

Play a browser-based game about conquering the world.
pzxc · HN
I've been using AI (mostly Claude, a little Cursor) to make video games, publishing a new one every day, for over 2 months Today's game is a simplified Risk clone called World Domination. Happy to answer any questions, would love any feedback!

Debate with AI-powered historical figures in real-time cross-temporal conversations.
回音堂 — 借助 AI,用对话的方式讲述历史故事 - [更多介绍](https://github.com/ruanqizhen/anachron)

Multiplayer drawing guessing game you can play instantly in your browser with friends.
DoodleGuesser — 免费在线画图猜词派对游戏,创建房间分享链接与朋友即时畅玩,实时画图猜词,自动计分轮换,无需下载注册

Free-to-play multiplayer flight simulator in your browser where you dogfight with other players online.
@TechMomentum_ · X
One guy. Three hours. A flight simulator, built inside a browser. Pieter Levels prompted Cursor and Grok to build from scratch, vibe coded almost entirely live on X. 17 days later: $87K a month. 320,000 people dogfighting strangers online. Elon Musk tweeting about it. The money came from ad slots on the terrain, zeppelins, billboards, about $5K a pop, sold straight from his own account. No team. No pitch deck. Just a guy shipping alone with tools most of us already pay for. This is what solo looks like now. #buildinpublic

Create presentation slides from plain text and broadcast live to phones in the room in 30 seconds.
@danielberigoi · X
Type plain text, get a clean deck in 30 seconds, broadcast it live to every phone in the room

Practice algorithm interview problems with solutions and interactive visualizers.
@Galliard232634 · X
Come study with me on