ChromaGun a fun puzzler, I have enjoyed playing ChromaGun for hours and hours, it is nice to relax from the fast paced run and gun FPS I normally play. If you are looking for a relaxing game that you can sit back and enjoy while working your brain muscle instead of your fingers and wrist reflexes then check out ChromaGun. Highly recommended!
ChromaGun is only $12.99 in the Steam Store; http://store.steampowered.com/app/408650/
"ChromaGun is a first person puzzler about colors. The basic principle is as easy as applying it is complex: Exit the chambers via the exit doors. Use the ChromaGun to colorize walls and WorkerDroids to progress in the chambers. WorkerDroids (the players’ main cause of headaches in ChromaGun) are attracted to walls of the same color and can be used for a variety of tasks like opening doors, activating triggers or removing the danger of deadly electrified floor-tiles by mercilessly sacrificing them. ChromaGun encompasses eight chapters of mind-melting puzzles and witty background-narrative."
Developers Website; http://pixel-maniacs.com/chromagun
Download Steam; http://steamcommunity.com/
ChromaGun is also available on the iPhone and iPad; http://apple.co/2byx8tn (I plan on doing a separate video for the mobile version)