Build structures from atoms and solve puzzles in this unique physics game. You choose the chemical rules of the universe and then set the simulation running. If you only see the logo screen then the app doesn't work on your device - sorry! Bear with me, I hope to have a fix soon. (If the app doesn't work on your device then please let us know by email and we'll get it working for you. Or try restarting your device. Thanks for all the feedback so far, this has helped improve the app.)