Hacker News Games

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

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.

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

Create and play custom connection games

Connect dots without crossing any lines in minimalist spatial puzzles

Daily bird species guessing game. Identify birds from images. New puzzle every 24 hours

Solve daily visual word puzzles with AI-generated artistic images

Text adventure with point-and-click exploration. Puzzle and escape room elements