Hacker News Games

Solve a murder mystery by practicing MongoDB queries in an interactive case, with an optional walkthrough.

Defend your base by clicking enemies and building and upgrading towers. Spend resources carefully to survive each wave.

Play Tetris inside a PDF, using a text input field for keyboard controls in a compatible desktop browser viewer

Work out how much a changing binary number increases in decimal. You have three attempts before the counter runs out.

An Android RPG that combines AI-driven storytelling with role-playing mechanics for a tabletop-style adventure.

A daily number puzzle: find three Fibonacci-like sequences that share exactly one number, the knot

A customizable trivia game for practicing confidence calibration, with finer-grained feedback than standard trivia.

Create and play custom connection games

Connect dots without crossing any lines in minimalist spatial puzzles