Chasm was essentially time travelling Quake, to reduce it to a few words. Military complex, ancient Egypt, medieval times, alien spaceship. It had some pretty decent dismemberment physics for the time, one dude for instance had an arm that could shoot buzzsaws, which you could remove, reducing him to trying to bite you. Military dude's with guns, shoot off their gun arm and they'll try to punch you with the other, shoot THAT off and they try to kick you lol. Was great fun, and it actually got a remaster on ps5/Steam which is phenomenal.