Games like CATACOMBS: The Beginning

Catacombs: The Beginning - is an excellent 3D shooter where you have to survive in the catacombs overfull of various monsters.

Catacombs: The Beginning - is an excellent 3D shooter where you have to survive in the catacombs overfull of various monsters.
Picked to match CATACOMBS: The Beginning on gameplay, themes, and feel.