ReactionLab Classic

🌟 ReactionLab 2 is now available!

ReactionLab is a pixelated particle sandbox game. Draw elements onto the canvas and watch them interact in real time!

This is the original version of the game. It contains:
- 40+ Elements
- 70+ Total particle types
- 45+ Achievements and reactions

ReactionLab uses no permissions, takes up only 1MB, and runs smoothly on any device.

Recent changes:
Ver 1.1.4/1.1.5:
- Performance improvements.
- Bug fixes, improved rendering on some devices.

Ver 1.1.3:
- Minor bug fix.

Ver 1.1.2:
- Support for extra small screens.
- Bug fixes, performance improvements, minor UI improvements.
- Improved icon.

Ver 1.1.1:
- Fixed a bug where torch could cause the game to crash.

Ver 1.1:
- Added Heating Coil, Steam Turbine, and Concrete!
- Added several more achievements.
- LOTS of bug fixes, performance improvements, element behavior tweaks, and more.