Single-player games like Solarium
Below are 8 single-player Steam games similar to Solarium, 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 Solarium page.
Ranked picks
- 1
Space Planet Explorer
Single-player alternative to Solarium — playable solo, no multiplayer required. Shares Adventure and Simulation with Solarium.
One wrong jump ends the mission. Explore 76 real worlds, from Mercury to TRAPPIST-1e, built from NASA data and astronomical research. Manage scarce resources, survey distant worlds, and search for humanity's new home in a science-driven space roguelite where every run could be your last.
- 2
PlanetMars3D: Spirit Mission
Single-player alternative to Solarium — playable solo, no multiplayer required. Shares Adventure and Simulation with Solarium.
Explore Mars in 3D through real Pancam photographs from NASA's Spirit rover. Glide between images with detail that sharpens as you approach, and skim thousands of rover photos at a glance — manual mode, slideshow, or automated flythrough. Photo credit: JPL / NASA / Cornell / ASU
- 3
The Tracy Arm Tsunami Experience
Single-player alternative to Solarium — playable solo, no multiplayer required. Shares Adventure and Simulation with Solarium.
Explore Tracy Arm, Alaska and trigger a massive landslide tsunami in a first-person simulation with land, air, and water viewpoints.
- 4
Ice Caves of Europa
Single-player alternative to Solarium — playable solo, no multiplayer required. Shares Adventure and Simulation with Solarium.
Ice Caves of Europa will challenge your reflexes and your mind, blending free-flowing precision flight with confronting science fiction ideas about the nature of humanity. An inquisitive flying robot exploring the hazardous caves beneath Europa stumbles upon a sinister interplanetary conspiracy.
- 5
Crossarium
Single-player alternative to Solarium — playable solo, no multiplayer required. Shares Adventure with Solarium.
Crossarium is an intellectual crossword game that challenges your erudition and logical thinking. Solve words, unlock new levels and sharpen your skills.
- 6
Celestial Golf
Single-player alternative to Solarium — playable solo, no multiplayer required. Shares Adventure with Solarium.
It’s 2D golf on an astronomical scale. Bite-sized missions will teach you the techniques of real space flight, without having to worry about fuel or crew. Precisely plan orbital trajectories over the moons of Mars, through the rings of Saturn, and boldly go where no golf ball has gone before.
- 7
Artificial Gravity Cat
Single-player alternative to Solarium — playable solo, no multiplayer required. Shares Adventure and Simulation with Solarium.
2D physics platformer! Control a cat in space and gravity itself!
- 8
Beyond Blue
Single-player alternative to Solarium — playable solo, no multiplayer required. Shares Adventure and Simulation with Solarium.
Beyond Blue is a single-player narrative adventure that takes you deep into our planet’s beating blue heart. Explore the awesome wonder and unbounded mystery that exists within the world’s ocean.