Hacker News Games

Rotate and rearrange tiles to rebuild a broken crossword in a new hand-crafted daily puzzle

Tic-tac-toe against an AI, played through an MCP client: move and heckle the model, trying to prompt-inject it.

Real-time online chess for two players via a shareable link, no login required.

Start a chess game and share a link so a friend can play a move by revisiting the same URL

The internet votes on each move of one shared global chess game, inspired by Twitch Plays Pokemon

Tactical deck-builder on a Conway's Game of Life board: play cards to place cells that live, die or mutate.

Visitors are assigned to White or Black in one shared global chess game that everyone plays together

Chess game built in C++ and SFML; play against a computer opponent with material and position evaluation.

Match numbers strategically to clear the board