Single-player games like Corridor 7: Alien Invasion
Below are 18 single-player Steam games similar to Corridor 7: Alien Invasion, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Corridor 7: Alien Invasion page.
Ranked picks
- 1
Chasm: The Rift
Single-player alternative to Corridor 7: Alien Invasion — playable solo, no multiplayer required. Shares Action with Corridor 7: Alien Invasion.
Prepare for terror in this ground-breaking classic old-school FPS. Following the destruction of Time you are left to battle in this horrific hellhole of multilevel interconnected missions populated by gruesome grotesque creatures.
- 2
Blake Stone: Aliens of Gold
Single-player alternative to Corridor 7: Alien Invasion — playable solo, no multiplayer required. Shares Action with Corridor 7: Alien Invasion.
Wolfenstein 3D took you into the past, thrusting you into a world at war. Blake rockets you into the future where a sinister madman, using genetics to create an army of bizarre creatures, is waging war on Earth. Blake has more of everything!
- 3
PO'ed: Definitive Edition
Single-player alternative to Corridor 7: Alien Invasion — playable solo, no multiplayer required. Shares Action with Corridor 7: Alien Invasion.
PO’ed is an adrenaline-pumping space shooter that features gameplay elements inspired by generational powerhouses DOOM and QUAKE. Play as a chef who crashlands on an alien planet infested with extraterrestrial foes. Using a menu of “household” weapons, PO’ed puts your wits and reflexes to the test.
- 4
Classic Marathon 2
Single-player alternative to Corridor 7: Alien Invasion — playable solo, no multiplayer required. Shares Action with Corridor 7: Alien Invasion.
From the team that brought you Aleph One, the classic sci-fi FPS Marathon 2: Durandal from Bungie on Mac revived for modern hardware by the fan community.
- 5
Half-Life
Single-player alternative to Corridor 7: Alien Invasion — playable solo, no multiplayer required. Shares Action with Corridor 7: Alien Invasion.
Named Game of the Year by over 50 publications, Valve's debut title blends action and adventure with award-winning technology to create a frighteningly realistic world where players must think to survive. Also includes an exciting multiplayer mode that allows you to play against friends and enemies around the world.
- 6
STAR WARS™: Dark Forces Remaster
Single-player alternative to Corridor 7: Alien Invasion — playable solo, no multiplayer required. Shares Action with Corridor 7: Alien Invasion.
The evil Empire is currently creating a doomsday army behind a veil of secrecy. However, they are no match for the Rebel Alliance's covert operations division. Your mission is to infiltrate the Empire and put an end to their plans for terror and domination.
- 7
DUSK
Single-player alternative to Corridor 7: Alien Invasion — playable solo, no multiplayer required. Shares Action with Corridor 7: Alien Invasion.
Battle through an onslaught of mystical backwater cultists, possessed militants & even darker forces as you attempt to discover just what lurks beneath the Earth in this retro FPS inspired by the '90s legends.
- 8
Rise of the Triad: Dark War
Single-player alternative to Corridor 7: Alien Invasion — playable solo, no multiplayer required. Shares Action with Corridor 7: Alien Invasion.
You are part of an elite group of operatives called HUNT (High-risk United Nations Taskforce), and you must stop a maniac cult leader from killing millions of people. You are equipped with high-tech weaponry and magical instruments that defy description to invade the monastery and stop the madness.
- 9
Operation Body Count
Single-player alternative to Corridor 7: Alien Invasion — playable solo, no multiplayer required. Shares Action with Corridor 7: Alien Invasion.
Capstone Software’s classic first-person shooter built on an upgraded Wolfenstein 3D engine brings the heat with 40 levels of intense action. Struggle to the top against hordes of bad guys – it’s time to put that training to the test, soldier!
- 10
Rise of the Triad
Single-player alternative to Corridor 7: Alien Invasion — playable solo, no multiplayer required. Shares Action with Corridor 7: Alien Invasion.
Apogee Software and Interceptor Entertainment proudly present the rebirth of the cult-classic first-person shooter, “Rise of the Triad”. Bigger, better and more ludicrous than ever before.
- 11
Witchaven
Single-player alternative to Corridor 7: Alien Invasion — playable solo, no multiplayer required. Shares Action with Corridor 7: Alien Invasion.
Witchaven is a first-person fantasy slasher set in a dark medieval times. Dare to enter this 3D Hell... Dare to enter Witchaven!
- 12
Wolfenstein 3D
Single-player alternative to Corridor 7: Alien Invasion — playable solo, no multiplayer required. Shares Action with Corridor 7: Alien Invasion.
World War II rages. The Nazis are planning to build an unstoppable, mutant army. On a mission to steal the secret plans, you were captured and imprisoned. Now, a lucky break gives you the chance to escape, but a maze of passages and trigger-happy Nazis stand in your way.
- 13
DOOM
Single-player alternative to Corridor 7: Alien Invasion — playable solo, no multiplayer required. Shares Action with Corridor 7: Alien Invasion.
Now includes all three premium DLC packs (Unto the Evil, Hell Followed, and Bloodfall), maps, modes, and weapons, as well as all feature updates including Arcade Mode, Photo Mode, and the latest Update 6.66, which brings further multiplayer improvements as well as revamps multiplayer progression.
- 14
No Fear
Single-player alternative to Corridor 7: Alien Invasion — playable solo, no multiplayer required. Shares Action with Corridor 7: Alien Invasion.
No Fear is a top-down arena shooter in which the player has to fight against hordes of various monsters. Challenge them using various weapons. You must survive!
- 15
Discoveries of the Deep
Single-player alternative to Corridor 7: Alien Invasion — playable solo, no multiplayer required.
Join an expedition to the unexplored abyss – a fascinating world of strange creatures, lost vessels, and a wealth of untold secrets. Search for ancient wrecks, underwater trenches, missing airplanes, and even the Titanic. Climb on board your mini-sub and dive as deep as you dare!
- 16
Search for the Titanic
Single-player alternative to Corridor 7: Alien Invasion — playable solo, no multiplayer required.
As an inexperienced oceanographer, you must build your skills, reputation, crew, and resources along your journey to mount an expedition to find the lost Titanic. Experience the challenges, dangers and excitement of scientific underwater exploration!
- 17
Witchaven II: Blood Vengeance
Single-player alternative to Corridor 7: Alien Invasion — playable solo, no multiplayer required. Shares Action with Corridor 7: Alien Invasion.
Continue the story of the knight Grondoval in this first-person fantasy slasher. Get ready for bloody encounters with vile creatures and vicious warriors. Stop an evil witch from carrying a titular blood vengeance in revenge for him having slain her sister.
- 18
Grandmaster Chess
Single-player alternative to Corridor 7: Alien Invasion — playable solo, no multiplayer required.
Whether you’re a beginner or a veteran, this fully featured chess game from Capstone has all the tools and features you need to learn and master the game of chess. Challenge an opponent with five adjustable skill levels from beginner to grandmaster.