Single-player games like SimpleRockets
Below are 13 single-player Steam games similar to SimpleRockets, 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 SimpleRockets page.
Ranked picks
- 1
Poland Car Simulator
Single-player alternative to SimpleRockets — playable solo, no multiplayer required. Shares Indie and Simulation with SimpleRockets.
Explore a map inspired by Poland. You can race and freely drive cars across the entire map, which includes several cities, a desert, mountains, and lakes. There are also several airplane models available, as well as a helicopter and a spaceship.
- 2
Galaxy Engine
Single-player alternative to SimpleRockets — playable solo, no multiplayer required. Shares Indie and Simulation with SimpleRockets.
Simulate the physics of the Universe on a large scale and create stunning visuals. Play with intergalactic interactions, smash planets together and even create the Big Bang itself!
- 3
A Hole In Space
Single-player alternative to SimpleRockets — playable solo, no multiplayer required. Shares Indie and Simulation with SimpleRockets.
A "small" universe simulation, where you play as a black hole and try to absorb the whole universe. You decide the size and shape of the universe. Could also be used as a less meaningful CPU benchmark.
- 4
Kerbal Space Program
Single-player alternative to SimpleRockets — playable solo, no multiplayer required. Shares Indie and Simulation with SimpleRockets.
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.
- 5
Juno: New Origins
Single-player alternative to SimpleRockets — playable solo, no multiplayer required. Shares Indie and Simulation with SimpleRockets.
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.
- 6
Hardspace: Shipbreaker
Single-player alternative to SimpleRockets — playable solo, no multiplayer required. Shares Simulation with SimpleRockets.
Equipped with cutting-edge salvaging tech, carve & slice spaceships to recover valuable materials. Upgrade your gear to take on more lucrative contracts and pay your billion credits debt to LYNX Corp!
- 7
Spaceflight Simulator
Single-player alternative to SimpleRockets — playable solo, no multiplayer required. Shares Indie and Simulation with SimpleRockets.
In Spaceflight Simulator, you will get to build your rockets, plan launches and flights, attempt landings, deploy payloads and explore new worlds.
- 8
Space Simulation Toolkit
Single-player alternative to SimpleRockets — playable solo, no multiplayer required. Shares Indie and Simulation with SimpleRockets.
Physics sandbox game that uses a graphics card as a supercomputer. Change the laws of physics, design mechanisms, create A-Life worlds and inhabit them with living beings, experiment with evolution and AI.
- 9
Space Simulator
Single-player alternative to SimpleRockets — playable solo, no multiplayer required. Shares Simulation with SimpleRockets.
Realistic simulation of spaceflight in a full sized Solar System, with all the planets and their major moons. using real forces, distances, velocities and time. Chapter 1: The Apollo Days. Incredibly detailed Apollo Program missions starting with Apollo 8 lunar orbit missions.
- 10
Minecraft: Story Mode - A Telltale Games Series
Single-player alternative to SimpleRockets — playable solo, no multiplayer required.
Episode 1 is now FREE - for a limited time! In Minecraft: Story Mode, playing as either a male or female hero named 'Jesse,' you’ll embark on a perilous adventure across the Overworld, through the Nether, to the End, and beyond.
- 11
SimplePlanes
Single-player alternative to SimpleRockets — playable solo, no multiplayer required. Shares Indie and Simulation with SimpleRockets.
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.
- 12
SimplePlanes 2
Single-player alternative to SimpleRockets — playable solo, no multiplayer required. Shares Indie and Simulation with SimpleRockets.
SimplePlanes is back! Build planes, cars, or anything else using powerful procedural parts! Explore detailed environments with friends in multiplayer, cause chaos, or download 1,000,000 community crafts for free.
- 13
SimplePlanes VR
Single-player alternative to SimpleRockets — playable solo, no multiplayer required. Shares Indie and Simulation with SimpleRockets.
SimplePlanes VR is a flight sim with an ever-expanding collection of hand-crafted aircraft to download and fly for free. Airplanes, helicopters, cars, boats, and more are available and new crafts are added every day.