Single-player games like Kerbal Space Program
Below are 16 single-player Steam games similar to Kerbal Space Program, 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 page.
Ranked picks
- 1
Juno: New Origins
Single-player alternative to Kerbal Space Program — playable solo, no multiplayer required. Shares Indie and Simulation with Kerbal Space Program.
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.
- 2
Spaceflight Simulator
Single-player alternative to Kerbal Space Program — playable solo, no multiplayer required. Shares Indie and Simulation with Kerbal Space Program.
In Spaceflight Simulator, you will get to build your rockets, plan launches and flights, attempt landings, deploy payloads and explore new worlds.
- 3
Space Engineers
Single-player alternative to Kerbal Space Program — playable solo, no multiplayer required. Shares Indie and Simulation with Kerbal Space Program.
Space Engineers is a sandbox engineering game where you design and build ships, stations, and planetary bases in a fully destructible environment. Explore planets and space, mine resources, survive hazards, and engage in combat alone or with friends in Creative or Survival modes.
- 4
Dyson Sphere Program
Single-player alternative to Kerbal Space Program — playable solo, no multiplayer required. Shares Indie and Simulation with Kerbal Space Program.
Build the most efficient intergalactic factory in space simulation strategy game Dyson Sphere Program! Harness the power of stars, collect resources, plan and design production lines and develop your interstellar factory from a small space workshop to a galaxy-wide industrial empire.
- 5
Trailmakers
Single-player alternative to Kerbal Space Program — playable solo, no multiplayer required. Shares Indie and Simulation with Kerbal Space Program.
Build the ultimate vehicle and explore a vast open world filled with challenges and adventure. Play solo or team up with friends in multiplayer to conquer the toughest obstacles. With a thrilling campaign mode and endless creative possibilities, Trailmakers is the ultimate sandbox for adventurers.
- 6
Scrap Mechanic
Single-player alternative to Kerbal Space Program — playable solo, no multiplayer required. Shares Indie and Simulation with Kerbal Space Program.
Enter the creative paradise of Scrap Mechanic! Build fantastic machines, go on adventures with your friends and defend against waves of evil Farmbots in this imaginative multiplayer survival sandbox. With Scrap Mechanic’s powerful creation tools you can engineer your own adventures!
- 7
SimplePlanes
Single-player alternative to Kerbal Space Program — playable solo, no multiplayer required. Shares Indie and Simulation with Kerbal Space Program.
Build airplanes by snapping parts together, designing wing sections, and attaching engines. At any time, you can strap yourself into the cockpit and see how it flies with realistic physics. If you're not in the mood for building, over 100,000 airplanes are available to download for free.
- 8
Satisfactory
Single-player alternative to Kerbal Space Program — playable solo, no multiplayer required. Shares Indie and Simulation with Kerbal Space Program.
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!
- 9
Oxygen Not Included
Single-player alternative to Kerbal Space Program — playable solo, no multiplayer required. Shares Indie and Simulation with Kerbal Space Program.
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.
- 10
No Man's Sky
Single-player alternative to Kerbal Space Program — playable solo, no multiplayer required.
No Man's Sky is a game about exploration and survival in an infinite procedurally generated universe.
- 11
Stormworks: Build and Rescue
Single-player alternative to Kerbal Space Program — playable solo, no multiplayer required. Shares Simulation with Kerbal Space Program.
Join a world where you design, create and pilot your own air sea rescue service. Release your inner hero as you battle fierce storms out at sea to rescue those in need.
- 12
Dwarf Fortress
Single-player alternative to Kerbal Space Program — playable solo, no multiplayer required. Shares Indie and Simulation with Kerbal Space Program.
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.
- 13
Factorio
Single-player alternative to Kerbal Space Program — playable solo, no multiplayer required. Shares Indie and Simulation with Kerbal Space Program.
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.
- 14
Prison Architect
Single-player alternative to Kerbal Space Program — playable solo, no multiplayer required. Shares Indie and Simulation with Kerbal Space Program.
Only the world’s most ruthless Warden can contain the world’s most ruthless inmates. Design and develop your personalized penitentiary in Prison Architect.
- 15
Stellaris
Single-player alternative to Kerbal Space Program — playable solo, no multiplayer required. Shares Simulation with Kerbal Space Program.
Explore a galaxy full of wonders in this sci-fi grand strategy game from Paradox Development Studios. Interact with diverse alien races, discover strange new worlds with unexpected events and expand the reach of your empire. Each new adventure holds almost limitless possibilities.
- 16
Starlite: Astronaut Rescue - Developed in Collaboration with NASA
Single-player alternative to Kerbal Space Program — playable solo, no multiplayer required. Shares Simulation with Kerbal Space Program.
Experience the thrill of standing in the boots of a future astronaut on Mars in the world of Starlite.Participate with your crewmate in a single-player 20 minute mini-adventure that soon turns into more than you bargained for on the Red Planet.