Doom 2: Pulling a lever will open up a secret room, which reveals a Doom 2 room with old Doom 2 corpses, and a few imps from the current generation of Doom.
It’s a nice throwback to the original Doom, and is a direct testament to how far the series has come.
And since everyone loves Easter eggs, we might as well tell you what we have found so far, in no particular order.
Fallout 4: Perhaps one of the biggest series that Bethesda has become known for, Fallout is all over the place in the newest Doom.