Wolfendoom (Wolfenstein)

From Doom Wiki

Wolfendoom is a Doom mod for Wolfenstein 3D. You play B.J. Blazkowicz Jnr, son of the legendary World War II hero and Commander Keen's father. Employed as a military consultant at the Union Aerospace Corporation (UAC), you become involved in a race to close down 6 portals to another dimension, nicknamed the "Doom Dimension", opened up inadvertently by UAC Research personnel.