Single-player games like Planet Gallery
Below are 8 single-player Steam games similar to Planet Gallery, 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 Planet Gallery page.
Ranked picks
- 1
Undead Space
Single-player alternative to Planet Gallery — playable solo, no multiplayer required. Shares Indie with Planet Gallery.
SPACE - FEAR, AND NO ONE WILL HELP YOU ............. A mix of horror and complete hopelessness. Explore dark corridors, isolated research modules, and abandoned Martian complexes. Here, you are completely alone, surrounded by the undead. Survive by immersing yourself in cosmic SURVIVAL HORROR.
- 2
The Solus Project
Single-player alternative to Planet Gallery — playable solo, no multiplayer required. Shares Indie and Simulation with Planet Gallery.
The Solus Project is a single player exploration adventure with survival elements. The adventure is set on a mysterious planet and is the spiritual successor to The Ball - 2010 PC Gamer Action/Adventure Game Of The Year...
- 3
The Station
Single-player alternative to Planet Gallery — playable solo, no multiplayer required. Shares Indie with Planet Gallery.
The Station is a first-person sci-fi mystery set on a space station sent to study a sentient alien civilization. Assuming the role of a recon specialist, players must unravel a mystery which will decide the fate of two civilizations.
- 4
Tacoma
Single-player alternative to Planet Gallery — playable solo, no multiplayer required. Shares Indie with Planet Gallery.
Tacoma is a sci-fi narrative adventure from the creators of Gone Home. Set aboard a high-tech space station in the year 2088, explore every detail of how the station’s crew lived and worked, finding the clues that add up to a gripping story of trust, fear, and resolve in the face of disaster.
- 5
IFO
Single-player alternative to Planet Gallery — playable solo, no multiplayer required. Shares Indie and Simulation with Planet Gallery.
A spaceship simulator for aliens, an ever-changing rule discovery puzzle for humans.
- 6
House of the Dying Sun
Single-player alternative to Planet Gallery — playable solo, no multiplayer required. Shares Indie and Simulation with Planet Gallery.
House of the Dying Sun is a tactical space shooter that puts you in the cockpit of the universe's most terrifying starfighter. Hunt the enemies of the Empire and bring ruin to their people.
- 7
Prey
Single-player alternative to Planet Gallery — playable solo, no multiplayer required.
In Prey, you awaken aboard Talos I, a space station orbiting the moon in the year 2032. You are the key subject of an experiment meant to alter humanity forever – but things have gone terribly wrong. The space station has been overrun by hostile aliens and you are now being hunted.
- 8
Unsafe Express
Single-player alternative to Planet Gallery — playable solo, no multiplayer required. Shares Indie with Planet Gallery.
Unsafe Express is a cooperative first-person survival horror game for 1-4 players. Navigate through space stations, collect materials and outlast your enemies! Choose your objective based on complexity levels, then cast your vote. Gather items, exterminate hostiles, fulfill missions and repeat!