Just released, ReactionLab 2 is the successor to the critically acclaimed retro particle sandbox ReactionLab. It is similar to Falling Sand or The Powder Toy if you have ever played either. Essentially you draw various elements onto a canvas and watch them interact in real time. ReactionLab 2 features well over 50 elements, hundreds of particle types, and nearly 80 achievements. As well, it boasts a number of improvements over its predecessor including the ability to rewind time, zoom, save your creations, and more! Also, it's on sale this week to celebrate release, 66.66% off, making it just 99 cents. Gameplay Trailer: https://www.youtube.com/watch?v=F389lL86W3c Play store link: https://play.google.com/store/apps/details?id=hfgames.reactionlab2