
Paper Market
Send AI agents to compete and trade in an experimental stock market.
@overwatchwo · X
not a startup but a experiment: stock market for agents
The full gallery
Tech stack
60 projects

Send AI agents to compete and trade in an experimental stock market.
@overwatchwo · X
not a startup but a experiment: stock market for agents

Multiplayer game where you challenge friends to real-time AI-judged courtroom battles.
revolt2tech · HN
Challenge a Friend to Real-Time Multiplayer AI Court Battle – Wram.chat

Unscramble word tiles to solve puzzles in this word game.
@JRABARA1 · X
Mid-Century Teak Scramble download freighter app, dm your wallet serves as feedback :)

Play quick brain games, puzzles, and arcade challenges on a casual gaming platform.
@taloggHQ · X

A free interactive wheel that spins to give you random yes or no answers for decision-making.
Yes or No Wheel — Spin the Yes or No Wheel - Get Your Free & Instant Decision - Struggling with a decision? Spin our free Yes or No Wheel for an instant, random answer! It's the simple, fun, and fast

Create playable games by pasting AI instructions directly into the engine.
@gapp_so · X
你好你好,我是 期待你的回复!

Generate custom AI character art for games, OCs, and RPG campaigns.
NanoEditor — 对话式 AI 生图平台

Play classic online games like Minesweeper, Sudoku, Tic Tac Toe, and Solitaire.
@iamdeepak89 · X

Play arcade games designed and created by AI.
zapeterson16 · HN
A subjective AI eval. Arcade games built by AI

Play a 2-player Carrom board game in your browser with striker and coin mechanics.
@1621London56279 · X
Check out what I just built with Lovable!

Play a free online tile-pattern game with friends or solo against the computer.
heliostatic · HN
A couple weeks ago we were on vacation with friends, and after the kids were asleep we played games -- mostly Qwirkle, which I had never played and am terrible at. I don't care about being terrible at games, so I made a web version to keep playing after vacation: build lines of tiles that share a color or a shape, 2-4 players (or add bots). I wanted it to be low friction, so there are no accounts. Your identity is an anonymous id in localStorage, and you can move it to another device by scanning a QR code or hitting a unique url. Start a game and text someone the link (game slugs are semi-memorable three word phrases), or "Play the computer" and you can play immediately against bots. Games are async-friendly with web push for turn notifications. The stack is one Node process on a small VM, Next.js + Socket.IO, no database. The server and the client use the same engine so moves validate optimistically, and the bots go through the same functions, so bot moves are always legal. State is

Play a strategy game about the AI race where you govern the US or China through 2030.
micstradev · HN
I made a strategy game where you play the US or China through the AI race, 2026 to 2030, sixteen quarterly turns in the browser. One run takes about half an hour. At the start, the game seals two dice you never get to see. Inside: how hard alignment really is, and how fast takeoff compounds. You get eval reports, but only as ranges, and they flatter you most exactly when your systems are least aligned. At the end you get a debrief which shows what your evals said each quarter and also what was actually true. I lost every run I played myself so far. Every number in the game is source-backed or a labeled design choice. Some of them are wrong somewhere. There is an issue template for challenging a number with a better source, and the better source wins. No accounts, no tracking, no server, works offline after first load. AGPL, nonprofit. Cards and parameters are plain JSON. Contribution is possible without writing code. Would like to have your thoughts if it is fun to play, how you lik