PuzzleScript

PuzzleScript puts you in the role of puzzle game designer — you write a few lines of plain-text code describing your tiles, rules, and win conditions, then hit Run and play the result instantly in the browser. The editor and the game run side by side, so tweaking a single rule and seeing it break (or fix) everything is part of the fun. No install, no build step, no prior experience required.

The engine is built around Sokoban-style tile logic, but the rule system is expressive enough that people have used it to recreate classics and build genuinely original mechanics. It's open-source under the MIT license, so anything you make is yours. If you enjoy making things as much as playing them, it fits neatly alongside other creative tools that reward tinkering over passive consumption.

Games are shareable via URL the moment they run, which makes it a surprisingly practical tool for rapid prototyping — a working puzzle concept can go from idea to playable link in under an hour.