Hacker News Games

Physics sandbox: build cars, helicopters and boats from scratch to smash every target

Guess the hidden four-letter word, learning bulls and cows from each guess

Falling-block puzzle: fill rings around a central core and rotate the board 90 degrees to clear them.

Adopt and look after a virtual seal in a 3D Tamagotchi-style pet game

Unscramble falling letter blocks into words before the playing field fills up

Race rivals to reach a hidden destination, traveling by simulated public transit and buying clues

Solve Sudoku puzzles while learning strategies with Learn, Show-me and auto-notes features

Six-minute training game that teaches enterprise employees to spot AI-driven cyberattacks

Survive three minutes hiding from a self-improving AI agent that hunts you by sensor data, not by screen