Simon Tatham's Portable Puzzle Collection

About

It’s a library of logic puzzles spanning grids, numbers, and abstract challenges. Each game is designed for solo play with clear rules and increasing difficulty. Titles range from sliding block mazes to pattern-matching grids, all with intuitive controls. The collection focuses on pure problem-solving, letting you tackle each puzzle at your own pace. What sets it apart is the sheer variety, over 40 distinct puzzles, plus the ability to adjust difficulty. Available on PC, Mac, Linux, and mobile, it’s been a staple for puzzle enthusiasts since 2004. The browser versions let you play without downloads, making it easy to jump in for a quick session or a deep dive.