Games

Learn origami free in your browser: twelve traditional paper models with animated 3D steps you can turn and replay, from a simple cup to the jumping frog.

A free deduction puzzle where sudoku line counts meet minesweeper neighbour counts. Every board has one solution, so no guessing. Plays on mobile.

A free 3D picross puzzle. Chisel the rock from a block to free the crystal inside, guided by clues on every line. No sign-up, on desktop or mobile.

Free online Sudoku with endless generated puzzles at four difficulties, a colourblind-safe colour mode and top scores. No sign-up, on desktop or mobile.

Free tower defence in your browser: grow saplings, mushrooms, vines and crystals to guard the Heart from twenty waves of corrupted data.

It's 3:47 AM and the plant has gone silent. A free roguelike in your browser: explore seven zones as the on-call engineer. No sign-up.

Guide a glowing star through space, collect orbs, dodge dark matter and beat the boss. Free arcade game in your browser, on desktop and mobile.

Two players place cells, then Conway's Game of Life decides who survives. Free to play in your browser on desktop or mobile, no sign-up.

Run a Tic Tac Toe tournament for 2 to 5 players on one device: round robin, playoff bracket and a champion. Free in your browser, no sign-up.