Aperture Tag: The Paint Gun Testing Initiative

Aperture Tag: The Paint Gun Testing Initiative is a community-created mod for Portal 2 inspired by TAG! The Power of Paint. The famous Portal 2 gels are now included in the Aperture Science Paint Gun Device and it's your job to test it! Featuring a new personality core and an original story with 27 elaborate levels, the mod offers an exciting and fun experience in varied and interesting new locations in Aperture Science. The introduction of gels as a central game mechanic changes the way you solve puzzles, explore, and survive any challenges you face!