No. 35 Shadow Warrior
Slightly rough around the edges, perhaps one of the most flawed games on my list but I had more fun with this than any modern Doom title or most FPS single player game in general. They struck gold when rebooting this series but sadly the sequels didn't live up to this amazing title. It's not my favourite first person shooter but it's very close, it does what games should do more often and leans into a very arcadey feel to gameplay and it's just a blast to playthrough, it's fast paced and constant action with little down time. Add in the slightly comical tone of the game and it's the cherry on top.