Planetarium is a comic book series using the source engine for it's illustrations originally written and illustrated by Ray Valencheko
This series of comics was scrapped recently, please check out the rebooted version if you are still interested.
Volume 4 of Planetarium.
Planetarium follows the main character who goes by two separate nicknames, one being Rookie, the other being Proto. Proto was never a normal person, after being genetically altered by a higher being, he's brought into this world to fight the true demons of what the multiverse holds
Chapters 24-32