Single-player games like Solar 2
Below are 8 single-player Steam games similar to Solar 2, 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 Solar 2 page.
Ranked picks
- 1
Universe Sandbox
Single-player alternative to Solar 2 — playable solo, no multiplayer required. Shares Indie and Simulation with Solar 2.
Create & destroy on an unimaginable scale with a realistic physics-based space simulator. Explore the beauty of our universe and the fragility of our planet. Use science to bend the laws of gravity, collide planets, boil away oceans, fire epic space lasers, and customize your universe.
- 2
Inspiral: Echoes of Gravity
Single-player alternative to Solar 2 — playable solo, no multiplayer required. Shares Indie and Simulation with Solar 2.
Start as an asteroid, grow by absorbing other celestial bodies to become a planet, a star, and ultimately a black hole. Experience realistic gravity and orbital physics in an ever-evolving sandbox universe.
- 3
PLANETOON
Single-player alternative to Solar 2 — playable solo, no multiplayer required. Shares Indie and Simulation with Solar 2.
A space puzzle game where you create galaxies. Discover cosmic surprises and over 60 endings. Complete the ending collection to unlock Endless Mode, and see how far your own galaxy can grow.
- 4
Terra Logic
Single-player alternative to Solar 2 — playable solo, no multiplayer required. Shares Indie and Simulation with Solar 2.
Sculpt planets and landscapes, watch water and climate respond, and compare two versions of the same world. Import heightmaps, draw mountain ranges, and export flat terrain to Minecraft Java. Explore Earth, ancient continents and distant worlds at your own pace.
- 5
Ribbit Riot!
Single-player alternative to Solar 2 — playable solo, no multiplayer required. Shares Simulation and Casual with Solar 2.
Ribbit Riot! is a one-button chaos game where you unleash idiot frogs to destroy a tiny city. Click the frog button, stack absurd upgrades, and watch everything spiral out of control.
- 6
SPORE™
Single-player alternative to Solar 2 — playable solo, no multiplayer required. Shares Action and Adventure with Solar 2.
Be the architect of your own universe with Spore, an exciting single-player adventure. From Single Cell to Galactic God, evolve your creature in a universe of your own creations.
- 7
SPORE™ Galactic Adventures
Single-player alternative to Solar 2 — playable solo, no multiplayer required. Shares Action and Simulation with Solar 2.
Take Your Creature From Zero To Galactic HeroGet out of your starship and turn your Spore creatures into legendary Space Captains. For the first time, beam down with your allies to take on action-packed, planetside adventures. Complete quests, collect rewards, and even create your own missions.
- 8
From Dust
Single-player alternative to Solar 2 — playable solo, no multiplayer required. Shares Adventure and Simulation with Solar 2.
Immerse yourself in a world as exotically beautiful as it is dangerous in this modern God-Game where Nature is the Star!