Doom 3: Phobos Teaser Trailer

As a modification (Mod) built on Doom 3, this PC-exclusive expansion offers new content focusing on exploration and environmental puzzles alongside its core first-person shooter action. You awaken on Mars with amnesia, partnering with an agent to find a missing person while the original chaos unfolds. Its design emphasizes methodical progression and intricate level layouts across its multi-episode structure, distinguishing it from standard corridor shooters.