7. Final Doom (1996)

Final Doom offered yet more Doom II. It was developed by two teams of fan modders and then released commercially by id as a big pack of 64 new levels. On one hand, more Doom II is a good thing. On the other, Final Doom was incredibly hard. Even today, some levels in Final Doom will challenge expert players on harder difficulties. Not all of the maps are great either. Still, as I said, more Doom II is a good thing and for players hungry for more difficult levels, Final Doom was a pleasant diversion.