Single-player games like Deadnaut
Below are 15 single-player Steam games similar to Deadnaut, 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 Deadnaut page.
Ranked picks
- 1

Duskers
Single-player alternative to Deadnaut — playable solo, no multiplayer required. Shares Strategy and Indie with Deadnaut.
Pilot drones into derelict spaceships to find the means to survive and piece together how the universe became a giant graveyard.
- 2

Biovoid
Single-player alternative to Deadnaut — playable solo, no multiplayer required. Shares Strategy and Indie with Deadnaut.
Biovoid is a creature-building roguelike game where you slay hordes of hostile aliens. Combine a variety of cells and mutations to create game-breaking builds and evolve from a fragile hatchling to a deadly predator.
- 3

Trigon: Space Story
Single-player alternative to Deadnaut — playable solo, no multiplayer required. Shares Strategy and RPG with Deadnaut.
Trigon: Space Story sees you take command of your very own spaceship. Carry out tactical battles, defend your vessel against space pirates, and escape from enemy territory. On your voyages, you’ll face a slew of tricky decisions in your quest to uncover the mystery of the galaxy.
- 4

Monstrum
Single-player alternative to Deadnaut — playable solo, no multiplayer required. Shares Indie with Deadnaut.
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.
- 5

Steam Marines
Single-player alternative to Deadnaut — playable solo, no multiplayer required. Shares Strategy and Indie with Deadnaut.
Steam Marines is a squad based Roguelike set on a steampunk spaceship. It features tactical play focused on positioning and careful use of resources. Built to keep you on your toes as you progress through the decks of your besieged ship while clearing enemies and trying to reach each level's elevator.
- 6

FTL: Faster Than Light
Single-player alternative to Deadnaut — playable solo, no multiplayer required. Shares Strategy and Indie with Deadnaut.
This "spaceship simulation roguelike-like" allows you to take your ship and crew on an adventure through a randomly generated galaxy filled with glory and bitter defeat.
- 7

Role of Hex
Single-player alternative to Deadnaut — playable solo, no multiplayer required. Shares Strategy and Indie with Deadnaut.
Role of Hex is a real-time strategy game where you defend your hexagonal base from the dangers of the universe. Gather upgrades and unlock special buildings to survive this hostile land as endless waves of enemies approach. But be quick, time is ticking and the waves are getting bigger.
- 8

Cosmodread
Single-player alternative to Deadnaut — playable solo, no multiplayer required. Shares Indie with Deadnaut.
Cosmodread is a VR survival horror roguelike about escaping a dying spaceship filled with nightmares. Stranded in a hostile universe, you must explore, survive, and find your way back to the safety of Earth.
- 9

Space Hulk (Classic)
Single-player alternative to Deadnaut — playable solo, no multiplayer required. Shares Strategy and Indie with Deadnaut.
The legendary Space Hulk returns in this epic turn based strategy game. Set in the Warhammer 40,000 universe, an intriguing story of legendary battles and heroic actions unfolds.
- 10

Space Hulk: Tactics (Classic)
Single-player alternative to Deadnaut — playable solo, no multiplayer required. Shares Strategy with Deadnaut.
Space Hulk: Tactics is a faithful adaptation of the board game Space Hulk, set in the Warhammer 40,000 universe, bringing a unique twist to the cult classic formula. Engage in bloody battles as either a squad of Terminator Space Marines or the deadly alien Genestealers.
- 11

Alien
Single-player alternative to Deadnaut — playable solo, no multiplayer required. Shares Indie with Deadnaut.
Alien is a visual novel exclusively for adults! This story is about a guy who has been dreaming of having sex with an alien woman for a very long time. At some point, this dream comes true and the guy finally fucked an alien woman!
- 12

Zafehouse: Diaries
Single-player alternative to Deadnaut — playable solo, no multiplayer required. Shares Strategy and Indie with Deadnaut.
Stuck in a remote, abandoned town, you must lead five survivors with conflicting motivations, fragile relationships and fiery prejudices to safety from the roving undead. A sophisticated engine generates new survivors, towns and content so every adventure is a different experience, and you can use built-in editors to add yourself and...
- 13

Zafehouse Diaries 2
Single-player alternative to Deadnaut — playable solo, no multiplayer required. Shares Strategy and Indie with Deadnaut.
Zafehouse Diaries 2 is a game of survival, exploration and relationships. Every hour, designate tasks for your handful of characters - each with their own skills, motivations and prejudices - and try to outlast the zombie apocalypse.
- 14

Fear Equation
Single-player alternative to Deadnaut — playable solo, no multiplayer required. Shares Strategy and Indie with Deadnaut.
Fear Equation is a turn-based horror strategy game where you play the engineer of a modified freight train, built to protect its occupants from a deadly fog that brings their nightmares to life. Survival depends on analysing passengers' dreams, crafting defenses, upgrading, scavenging and resource management.
- 15

Deadnaut: Signal Lost
Single-player alternative to Deadnaut — playable solo, no multiplayer required. Shares Strategy and Indie with Deadnaut.
Deadnaut: Signal Lost is a sci-fi horror turn-based roguelike where loyalty isn't earned - it's installed. Scavenge derelict ships and abandoned moons filled with hellish creatures, brutal AI and insanity storms. Gather gear and upgrades to fight or evade the hi-tech supersoldiers hunting you down.