Single-player games like Planet Genesis 2
Below are 10 single-player Steam games similar to Planet Genesis 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 Planet Genesis 2 page.
Ranked picks
- 1
Kerbal Space Program
Single-player alternative to Planet Genesis 2 — playable solo, no multiplayer required. Shares Simulation with Planet Genesis 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.
- 2
Take On Mars
Single-player alternative to Planet Genesis 2 — playable solo, no multiplayer required. Shares Simulation with Planet Genesis 2.
Take On Mars places you right in the middle of mankind’s most exciting undertaking. Start out in the seat of a rover operator, finish as the first human to have ever set foot on the Red Planet.
- 3
Universe Sandbox
Single-player alternative to Planet Genesis 2 — playable solo, no multiplayer required. Shares Simulation and Casual with Planet Genesis 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.
- 4
SpaceEngine
Single-player alternative to Planet Genesis 2 — playable solo, no multiplayer required. Shares Simulation and Casual with Planet Genesis 2.
The world's first science-based photorealistic interactive 3D planetarium that models the entire Universe, using procedural generation for uncharted areas.
- 5
Rocket Science
Single-player alternative to Planet Genesis 2 — playable solo, no multiplayer required. Shares Simulation with Planet Genesis 2.
Take part in a space program. Design spacecrafts and send them off to explore the vast expanses of space. Experience the real scale of the Solar system and the size of its celestial bodies.
- 6
Mars Horizon
Single-player alternative to Planet Genesis 2 — playable solo, no multiplayer required. Shares Simulation with Planet Genesis 2.
Lead a major space agency as you guide humanity to Mars in this strategy simulation game. Construct a base, design and build rockets, conduct missions throughout the Solar System, and write your own history of Space exploration. Created with support from the European Space Agency.
- 7
SPORE™
Single-player alternative to Planet Genesis 2 — playable solo, no multiplayer required. Shares Simulation with Planet Genesis 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.
- 8
No Man's Sky
Single-player alternative to Planet Genesis 2 — playable solo, no multiplayer required.
No Man's Sky is a game about exploration and survival in an infinite procedurally generated universe.
- 9
FUR Squadron
Single-player alternative to Planet Genesis 2 — playable solo, no multiplayer required.
The FUR Squadron faces a mysterious threat during what appears at first to be routine virtual reality training.
- 10
FUR Squadron Phoenix
Single-player alternative to Planet Genesis 2 — playable solo, no multiplayer required.
Embark on an action-packed adventure in this on-rails space shooter. As a pilot in training, you’ll battle in strange virtual worlds. Master your ship, upgrade your skills, and protect the federation from an imminent threat. Are you ready for the challenge?