Successfully complete experiments on your TEST SUBJECTS by opening and closing portals at the right places using your portal gun.
Fun physics based puzzle game that will trick your mind!

It is now fully optimized for your mobile device, allowing you to enjoy playing it conveniently whenever and wherever you choose. Simply launch it on your phone or tablet and start playing!

Last updated on Jan 13,2025

Minor bug fixes and improvements. Install or update to the newest version to check it out!