Darktide.
It's bad and I should feel bad for playing it, but once you get past the absurdly long load times, janky cutscenes, regular crashes and absolute lack of any story or plotline, it's got remarkably addictive gameplay, and it's the only game that actively encourages your inner fanatic to pick up their boltgun and chainsword and KILL THE HERETICS.
It's like finding a kilo of PCP laced weed at the bottom of the dumpster behind the 7-11. I shouldn't like it, and it will probably kill me, but for some reason I can't stop smoking it.