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
My Little Cosmos
Single-player alternative to Solar 2 — playable solo, no multiplayer required. Shares Indie and Simulation with Solar 2.
My Little Cosmos is a light idle clicker game that runs quietly in the background. Keyboard input and mouse clicks from everyday computer use automatically drive the evolution of a universe, with inventory rewards dropping over time.
- 4
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.
- 5
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!
- 6
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.
- 7
Kerbal Space Program
Single-player alternative to Solar 2 — playable solo, no multiplayer required. Shares Indie and Simulation with Solar 2.
In Kerbal Space Program, take charge of the space program for the alien race known as the Kerbals. You have access to an array of parts to assemble fully-functional spacecraft that flies (or doesn’t) based on realistic aerodynamic and orbital physics.
- 8
Super Kingcrab Simulator
Single-player alternative to Solar 2 — playable solo, no multiplayer required. Shares Action and Indie with Solar 2.
Destroy it! And liberate it! Until it's all over..Be a delicious and fresh super kingcrab, destroy the city and liberate the kingcrab to join them!