Single-player games like Rela
Below are 8 single-player Steam games similar to Rela, 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 Rela page.
Ranked picks
- 1
Soyuz Constructors
Single-player alternative to Rela — playable solo, no multiplayer required. Shares Indie and Simulation with Rela.
Become a pioneer of spaceflight. As an engineer in the Soviet Space Program you will be responsible for repairing, fixing and building the iconic spacecraft and rockets from the R-7 family.
- 2
Magnet Mania 3D
Single-player alternative to Rela — playable solo, no multiplayer required. Shares Indie and Simulation with Rela.
Magnet Mania 3D, it's a simulation game for small and big engineers, school children to learn about magnetism and physics.
- 3
Kerbal Space Program
Single-player alternative to Rela — playable solo, no multiplayer required. Shares Indie and Simulation with Rela.
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.
- 4
Spaceflight Simulator 2
Single-player alternative to Rela — playable solo, no multiplayer required. Shares Indie and Simulation with Rela.
Build rockets and fly them around the Solar System in this realistic aerospace sandbox. Attempt landings, build space stations, drive rovers, perform spacewalks, explore alien worlds, and get your crew home safe.
- 5
Virtual Chemistry Lab
Single-player alternative to Rela — playable solo, no multiplayer required. Shares Indie and Simulation with Rela.
This is a serious game. Made for educational purposes. It was made in order to enable students to understand the high school chemistry curriculum and to provide equality of opportunity.
- 6
Rocket Science
Single-player alternative to Rela — playable solo, no multiplayer required. Shares Simulation with Rela.
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.
- 7
Juno: New Origins
Single-player alternative to Rela — playable solo, no multiplayer required. Shares Indie and Simulation with Rela.
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.
- 8
Take On Mars
Single-player alternative to Rela — playable solo, no multiplayer required. Shares Simulation with Rela.
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.