ReactionLab 2 - Sandbox

4.4
1.03K reviews
10K+
Downloads
Content rating
Everyone
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About this game

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
Updated on
Sep 1, 2015

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
App activity
Data isn’t encrypted
You can request that data be deleted
4.4
1.03K reviews
Deathless Snek
November 16, 2022
Not a bad pixel game. It could definitely use some updates though, the gui could be more descriptive and in depth. For example the share tab could have a search bar to look for specific levels, maybe a filter button. You could add more tools, like a clone tool (not the clone emitter) that can copy pixels you drag your finger over, then a drag tool to drag pixels around the screen to make reactions easier (and more fun), and an identify tool (in case we can't figure out what type a pixel is)
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A Google user
April 15, 2019
This is so much more entertaining than I expected. There's plenty to do, and it's all very satisfying - both aesthetically and in feeling. The only thing I feel is missing is a mix option to move things around, and gyroscopic tilt would add a little extra something - but frankly they're not needed. I've only played an hour or so but so far it is wildly fun. IMO it's well worth the money, I got it on sale but knowing how good it is I would gladly pay full price for it. 5/5 would recommend.
37 people found this review helpful
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yolas
November 16, 2020
Cool but the canvas is too small and we need a better way to find elements and register found ones. We could get any better ways to give hints on reactions than the InGame "achievements". Looks like a prototype more than a full game, but it has potential, it would be cool to get missions like, do "this" with the given elements, we could learn... Still well worth it's price though, and it's almost unique but easier (and more limited) than its big brother "The Powder Toy" (free on pc and Android)
33 people found this review helpful
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What's new

Ver 1.6.0:
- Added 12 new elements and 21 new reactions.
- UI and animation improvements.
- Improved support for very high resolution displays.
- Performance improvements.
- Minor bug fixes.

Ver 1.5.0:
- Added 3 new elements and 8 new reactions.

[More detailed changelog available at: http://reactionlab.hforsyth.com]