Single-player games like Moonbase Lambda
Below are 8 single-player Steam games similar to Moonbase Lambda, 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 Moonbase Lambda page.
Ranked picks
- 1
Monstrum
Single-player alternative to Moonbase Lambda — playable solo, no multiplayer required. Shares Indie with Moonbase Lambda.
Monstrum takes the traditional survival horror formula and remixes it completely with procedurally generated levels, permadeath, and AI driven predators, ensuring that nowhere on its derelict cargo ship is ever truly safe.
- 2
Teleglitch: Die More Edition
Single-player alternative to Moonbase Lambda — playable solo, no multiplayer required. Shares Action and Indie with Moonbase Lambda.
In a cold, dark future dominated by mega-corporations, a small lonely planet on the edge of habitable space is the site of a shadowy research facility specializing in necrotic tissue reactivation. You are a scientist who has suddenly awoken to the realization that you are the lone survivor.
- 3
Alien: Isolation
Single-player alternative to Moonbase Lambda — playable solo, no multiplayer required. Shares Action with Moonbase Lambda.
Discover the true meaning of fear in Alien: Isolation, a survival horror set in an atmosphere of constant dread and mortal danger.
- 4
Deadnaut
Single-player alternative to Moonbase Lambda — playable solo, no multiplayer required. Shares Indie with Moonbase Lambda.
Deadnaut is Screwfly Studios' second game and follow up to cult hit, Zafehouse: Diaries. Deadnauts, so named because they’re unlikely to return, must explore, investigate and fight their way through the derelict ships of dead civilisations. Every mission is unique and no two locations are the same.
- 5
The Persistence
Single-player alternative to Moonbase Lambda — playable solo, no multiplayer required. Shares Action and Indie with Moonbase Lambda.
Survive aboard a doomed deep space colony starship, overrun with horrific and murderous aberrations. Explore, evade and fight your way through the depths to bring the ship back to Earth. Gather resources, upgrade abilities and fabricate an arsenal of weapons in this sci-fi horror roguelite.
- 6
Not The Robots
Single-player alternative to Moonbase Lambda — playable solo, no multiplayer required. Shares Action and Indie with Moonbase Lambda.
You are a robot in an office building. You have to eat furniture and not get caught. A mysterious story unfolds.Not The Robots is this year’s most exciting Roguelike Stealth Furniture Eating Simulator. It’s a game with random levels, permadeath, and the goal of eating furniture - which is also your stealth cover.
- 7
Immortal Redneck
Single-player alternative to Moonbase Lambda — playable solo, no multiplayer required. Shares Action and Indie with Moonbase Lambda.
Immortal Redneck is a FPS set in Egypt with rogue-lite elements. Frantic gameplay, twitch controls and an arcade-style feel meet randomly generated dungeons, a complete skill tree, permanent death and 9 classes with different traits.
- 8
Heavy Bullets
Single-player alternative to Moonbase Lambda — playable solo, no multiplayer required. Shares Action and Indie with Moonbase Lambda.
Heavy Bullets is a randomized FPS dungeon crawler where players make their way through a colorful maze, while protecting themselves from aggressive creatures and malfunctioning security devices. The goal lies at the end of the 8th level, where they must reset the security mainframe to restore order and reap the rewards.