Nazi Auferstehung

Nazi Auferstehung (German for Resurrection) is a ZDoom mod.

Plot
The game tells a story of a marine who has been sent to destroy a neo-Nazi organization. However the player finds out that the neo-Nazis have managed to revive Nazi soldiers from Hell. As the player continues to battle the Nazis and their fearsome experiments, the player finally fought the Satan, killing him. The Satan's death eventually created a black hole that sends every Nazi and Hell monsters to be banished back to Hell forever. The game ends with the player returning to the player's headquarters.