Single-player games like Kerbal Space Program 2
Below are 16 single-player Steam games similar to Kerbal Space Program 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 Kerbal Space Program 2 page.
Ranked picks
- 1
Kerbal Space Program
Single-player alternative to Kerbal Space Program 2 — playable solo, no multiplayer required. Shares Indie and Simulation with Kerbal Space Program 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
Spaceflight Simulator
Single-player alternative to Kerbal Space Program 2 — playable solo, no multiplayer required. Shares Indie and Simulation with Kerbal Space Program 2.
In Spaceflight Simulator, you will get to build your rockets, plan launches and flights, attempt landings, deploy payloads and explore new worlds.
- 3
Juno: New Origins
Single-player alternative to Kerbal Space Program 2 — playable solo, no multiplayer required. Shares Indie and Simulation with Kerbal Space Program 2.
Bring to life anything you can imagine from rockets and airplanes to cars and more. Automate them with a visual programming language. Explore 3D planets and make your own. Share your creations online. Complete contracts, conquer milestones, and unlock technology in the newly added Career Mode.
- 4
SpaceEngine
Single-player alternative to Kerbal Space Program 2 — playable solo, no multiplayer required. Shares Indie and Simulation with Kerbal Space Program 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 Kerbal Space Program 2 — playable solo, no multiplayer required. Shares Simulation and Early Access with Kerbal Space Program 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
Universe Sandbox
Single-player alternative to Kerbal Space Program 2 — playable solo, no multiplayer required. Shares Indie and Simulation with Kerbal Space Program 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.
- 7
Oxygen Not Included
Single-player alternative to Kerbal Space Program 2 — playable solo, no multiplayer required. Shares Indie and Simulation with Kerbal Space Program 2.
Oxygen Not Included is a space-colony simulation game. Deep inside an alien space rock your industrious crew will need to master science, overcome strange new lifeforms, and harness incredible space tech to survive, and possibly, thrive.
- 8
Reentry - A Space Flight Simulator
Single-player alternative to Kerbal Space Program 2 — playable solo, no multiplayer required. Shares Indie and Simulation with Kerbal Space Program 2.
Do you have what it takes to become an astronaut? Reentry is a realistic space flight simulator inspired by the early NASA space programs, from orbiting Earth in Mercury and Gemini, to the moon landing in project Apollo. Learn the procedures. Operate the spacecraft. Complete the mission.
- 9
Factorio
Single-player alternative to Kerbal Space Program 2 — playable solo, no multiplayer required. Shares Indie and Simulation with Kerbal Space Program 2.
Factorio is a game about building and creating automated factories to produce items of increasing complexity, within an infinite 2D world. Use your imagination to design your factory, combine simple elements into ingenious structures, and finally protect it from the creatures who don't really like you.
- 10
Satisfactory
Single-player alternative to Kerbal Space Program 2 — playable solo, no multiplayer required. Shares Indie and Simulation with Kerbal Space Program 2.
Satisfactory is a first-person open-world factory building game with a dash of exploration and combat. Play alone or with friends, explore an alien planet, create multi-story factories, and enter conveyor belt heaven!
- 11
Dwarf Fortress
Single-player alternative to Kerbal Space Program 2 — playable solo, no multiplayer required. Shares Indie and Simulation with Kerbal Space Program 2.
Build a fortress and try to help your dwarves survive against a deeply generated world. Keep your dwarves happy, grow their community and beware of digging too deeply. The deepest, most intricate simulation of a world that's ever been created.
- 12
FTL: Faster Than Light
Single-player alternative to Kerbal Space Program 2 — playable solo, no multiplayer required. Shares Indie and Simulation with Kerbal Space Program 2.
This "spaceship simulation roguelike-like" allows you to take your ship and crew on an adventure through a randomly generated galaxy filled with glory and bitter defeat.
- 13
Toribash
Single-player alternative to Kerbal Space Program 2 — playable solo, no multiplayer required. Shares Indie with Kerbal Space Program 2.
Toribash is an innovative free-to-play online turn-based fighting game where you’re able to design your own moves. Complete control over character's body, hundreds of game mods and bloody mess with full body dismemberment - you've never been able to annihilate your enemies like that before!
- 14
Infinifactory
Single-player alternative to Kerbal Space Program 2 — playable solo, no multiplayer required. Shares Indie and Simulation with Kerbal Space Program 2.
Infinifactory is a sandbox puzzle game by Zachtronics, the creators of SpaceChem and Infiniminer. Build factories that assemble products for your alien overlords, and try not to die in the process.
- 15
Exanima
Single-player alternative to Kerbal Space Program 2 — playable solo, no multiplayer required. Shares Indie and Simulation with Kerbal Space Program 2.
Explore, fight, survive and unravel mysteries in this unique and unforgiving 3D isometric RPG set in an original dark, low fantasy world. Exanima's exceptional attention to detail and realistic simulation of all things aim to provide a deeply immersive and dynamic gameplay experience.
- 16
The Witness
Single-player alternative to Kerbal Space Program 2 — playable solo, no multiplayer required. Shares Indie with Kerbal Space Program 2.
You wake up, alone, on a strange island full of puzzles that will challenge and surprise you.