
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

Add your name to a permanent public wall and choose your position.
@nowflexhere · X
Imagine a public list. Everyone on it chose their own position. No skill. No prize. Just your name, permanently. Prove your Digital Status:

Online chess platform for kids with a focus on privacy and safety.
Jeffery

Explore a walkable 3D virtual lobby with AI products, games, a movie theater, and chat spaces.
@TIM_x_AI · X

Explore quantum computing and machine learning through interactive experimentation.
@ajkbossp · X
Check out what I just built with Lovable!

Create interactive games, polls, and quizzes with AI for presentations and events.
u/molefrog · Reddit
create multiplayer apps that you can play with friends or share with coworkers. Like Slido/Kahoot but you can create your own one with AI. It can build polls, quizzes or games. had this idea for a while, the space isn't new and there is apps like Kahoot that presenters or educators use for polling/quizzes. however the templates are limited, so I decided to ship my own vibe-coding IDE for generating these. you just describe it for example "noise meter: people scream at their phon

A platform where founders share project logs, track progress, and discover what other builders are working on.
@yerassylnu · X
Github for founders

Fetch X post replies and publish them as embeddable social proof carousels.
@tamimbuilds · X
x replies into embedded carousel

Interactive storytelling platform where kids create and share stories while learning.
@feifei_qiu · X
A place kids can create, share, learn and grow, starting with stories and soon a walkable book

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. 💚

AI-powered English learning game where kids photograph their schedule to generate vocabulary lessons through animal villagers.
@lzhgus · X
My kid goes to an English-only school in the US, but we speak Chinese at home. So I built her a tiny Animal Crossing-style island to learn English 🏝️ Snap a pic of the teacher's daily schedule → AI turns it into a lesson pack → she learns words from animal villagers, shakes apple trees, goes fishing 🎣 100% hand-written Three.js, zero assets, no backend. Try it:

Slide the green piece to the target with unique movement rules for each colored piece.
u/DailyObstruction · Reddit
Obstruction - A daily sliding puzzle Obstruction is a puzzle where the aim is to slide the green piece to the target. Sounds simple, but pieces have movement restrictions depending on their colour so the solution isn't always as easy as it seems. With a fresh puzzle every day and a short playtime, this game can become a fun habit that slips right into your daily routine. Compete with your friends to see who can solve it in the shortest time or fewest moves using the share button