A portal 2 mod set on the moon (Or more specifically inside the moon) Aperture hollowed out a lot of the moon during the space-race and made testing facilities in the hollowed out rock which was later re-purposed for mining moonrock for gel. You are awoken from slumber in a relaxation pod years in to the future when the underground facilities are crumbling and close to collapse. Find a way to the surface and back to earth..
Im not a very good concept artist, but I thought this would be a cool concept.
That's actually pretty cool.
Appreciate it!
i think it should be portal blastr instanted of portal gun