There is a whole lot of portal hopping and artifact recovery going on in this Portal / Assassin’s Creed collision by The Other Mike. He now has shirts and hoodies up for sale on his RedBubble store.
Related Rampages: Back to the Tardis | Full Metal Spartan (More)
Assassin’s Portal by The Other Mike (RedBubble) (deviantART)
Rampaged Reality 