Single-player games like Extraneum
Below are 14 single-player Steam games similar to Extraneum, 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 Extraneum page.
Ranked picks
- 1
Gossamer Matrix
Single-player alternative to Extraneum — playable solo, no multiplayer required. Shares Action and Indie with Extraneum.
A retro-inspired, jumbled-up arcade shooter with disorienting gameplay mechanics set during the height of corporate militarization.
- 2
STAR WARS™: Dark Forces Remaster
Single-player alternative to Extraneum — playable solo, no multiplayer required. Shares Action with Extraneum.
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.
- 3
INCISION
Single-player alternative to Extraneum — playable solo, no multiplayer required. Shares Action and Indie with Extraneum.
Ultraviolent, fast-paced, merciless retro FPS action. Slaughter your way through nightmarish industrial mazes, transformed cityscapes, and surreal alien structures to cut down the Growth.
- 4
Warhammer 40,000: Boltgun
Single-player alternative to Extraneum — playable solo, no multiplayer required. Shares Action and Indie with Extraneum.
Load up your Boltgun and unleash the awesome Space Marine arsenal to blast your way through an explosion of sprites, pixels and blood in a perfect blend of Warhammer 40,000, frenetic gameplay and the stylish visuals of 90’s retro shooters.
- 5
Dread Templar
Single-player alternative to Extraneum — playable solo, no multiplayer required. Shares Action and Indie with Extraneum.
Dread Templar is a fast-paced hardcore old-school FPS, combining classic 90s shooter and modern FPS elements. Unlock and combine dozens of weapon upgrades and skills, embrace the Dread Force and obliterate hordes of fiendish enemies. Become the scariest thing in hell and get your revenge!
- 6
Blake Stone: Aliens of Gold
Single-player alternative to Extraneum — playable solo, no multiplayer required. Shares Action with Extraneum.
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!
- 7
Supplice
Single-player alternative to Extraneum — playable solo, no multiplayer required. Shares Action and Indie with Extraneum.
Supplice is a stylish throwback shooter inspired by the mid-90s FPS glory days and the legendary Doom modding community. Mixing the retro stylings of 90s era shooters with colorful graphics and frantic gameplay, it creates an experience that's ever so familiar but also exciting and fresh.
- 8
DUSK
Single-player alternative to Extraneum — playable solo, no multiplayer required. Shares Action and Indie with Extraneum.
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.
- 9
Wolfenstein 3D
Single-player alternative to Extraneum — playable solo, no multiplayer required. Shares Action with Extraneum.
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.
- 10
Quake
Single-player alternative to Extraneum — playable solo, no multiplayer required. Shares Action with Extraneum.
Developed by the award-winning id Software, Quake® is the ground-breaking, original dark fantasy first-person shooter that inspires today’s retro-style FPS games. With Quake (Enhanced), experience the authentic, updated, and visually enhanced version of the original.
- 11
Project Warlock
Single-player alternative to Extraneum — playable solo, no multiplayer required. Shares Action and Indie with Extraneum.
Project Warlock is a first-person shooter that fans of Doom, Hexen, and Wolfenstein cannot miss. It serves you an exploding cocktail of bullets, spells, and monsters. Battle through 60 levels of non-stop action, packed with bloodthirsty enemies and challenging bosses.
- 12
Wizordum
Single-player alternative to Extraneum — playable solo, no multiplayer required. Shares Action and Indie with Extraneum.
Wizordum is a retro FPS that puts you in the role of a Mage on a quest to track down the source of Chaos. With a wide arsenal of spells and magic items, battle your way through the world of Terrabruma in this unique blend of classic 90s shooters and modern gaming elements.
- 13
DOOM
Single-player alternative to Extraneum — playable solo, no multiplayer required. Shares Action with Extraneum.
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
Exophobia
Single-player alternative to Extraneum — playable solo, no multiplayer required. Shares Action and Indie with Extraneum.
Explore and fight your way through a crashed human spaceship infested with relentless hordes of aliens as you become more powerful with exciting weapon upgrades and powerups in this retro inspired first-person shooter.