Draw elements onto the canvas and watch them interact in real time!

With 80+ elements, hundreds of different particle types, and nearly 140 achievements to attain. There are endless creative possibilities and undiscovered combinations. Try to find every reaction, or just build something awesome; it's up to you!

⚗️ Features:
- Massive reactions list and over 80 elements
- Freely pause and rewind time
- Zoom tool with minimap
- Save creations locally or share them with others online

You Should Know:
- No ads or in-app purchases
- Tiny 1MB install size
- Runs smoothly on any device
- Only permission used is 'network', for the share feature

// Option A // 5e7015

To ReactionLab 2 - Sandbox mod from happymod.completedownload.net.
You need enable the option "Unknown Sources".
1. Click on the above link to ReactionLab 2 - Sandbox mod APK.
2. Save the file in your device s folder.
3. Now tap on Install and wait for the installation to finish.
4. Once it is done, open the game and start playing it right away.

// Option B // 5s5x38

To ReactionLab 2 - Sandbox from HappyMod APP, you can follow this:
1. Open your browser and the HappyMod APK file from happymod.completedownload.net - the only official website of HappyMod.
2. Open Android Settings and go into Privacy or Security.
3. Tap the option to Allow Unknown Sources and enable it.
4. Go to your Android s and tap the APK file.
5. Follow the directions on the screen to install it.
6. Search ReactionLab 2 - Sandbox in HappyMod App.