Many people remember DOOM as one of the best First-Person shooters ever (rightfully so), but few seem to remember Quake: a delightful romp through medieval and Lovecraftian nightmare-fueled worlds where you have to destroy an Elder God and prevent its monster servants from invading Earth.
It might be useless as all heck as armor, but here on Earth this snapback hat with the iconic Quake logo can protect you from the sun. BFG sadly not included.