Single-player games like Suborbital
Below are 9 single-player Steam games similar to Suborbital, 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 Suborbital page.
Ranked picks
- 1
Astrometica
Single-player alternative to Suborbital — playable solo, no multiplayer required. Shares Indie and Adventure with Suborbital.
Astrometica is a space exploration and base-building survival game. After a catastrophic event, explore vast space, gather resources, build bases, and uncover cosmic mysteries. Use advanced technology, craft tools, and discover new blueprints to survive and thrive in the unknown.
- 2
Astrometica: Prologue
Single-player alternative to Suborbital — playable solo, no multiplayer required. Shares Indie and Adventure with Suborbital.
Astrometica: Prologue is the free game about surviving in space. You need to use your skills and tools to stay alive. There are many challenges to face, and you need to fight to survive. You also need to build a new base in space.
- 3
No Man's Sky
Single-player alternative to Suborbital — playable solo, no multiplayer required. Shares Adventure with Suborbital.
No Man's Sky is a game about exploration and survival in an infinite procedurally generated universe.
- 4
INTERASTRA: Planet Survival
Single-player alternative to Suborbital — playable solo, no multiplayer required. Shares Adventure with Suborbital.
INTERASTRA is a fully immersive first-person sci-fi survival adventure game set in outer space. Discover unknown planets differing in weather conditions, resources, and various mysteries. Craft necessary equipment, launch, and control space rockets, explore the universe, and survive among the stars.
- 5
SpaceCraft
Single-player alternative to Suborbital — playable solo, no multiplayer required. Shares Indie and Adventure with Suborbital.
The Universe is yours. SpaceCraft is an online space exploration and building game. Explore a vast galaxy of solar systems and planets, mine and craft resources, design and build ships, automate planetary bases and interplanetary logistics, trade and cooperate.
- 6
Empyrion - Galactic Survival
Single-player alternative to Suborbital — playable solo, no multiplayer required. Shares Indie and Adventure with Suborbital.
Build and explore in a true space sandbox survival adventure. Construct mighty capital vessels, sprawling planetary settlements, and vast space stations in your galactic journey to discover the mysteries of Empyrion!
- 7
Stardeus
Single-player alternative to Suborbital — playable solo, no multiplayer required. Shares Indie with Suborbital.
Stardeus is a deep colony sim set on a broken starship manned by drones and hibernating human survivors. As the AI, have your drones repair your ship, save your crew and travel the stars in this beautiful simulation.
- 8
Kerbal Space Program
Single-player alternative to Suborbital — playable solo, no multiplayer required. Shares Indie with Suborbital.
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.
- 9
Unconquered Sun
Single-player alternative to Suborbital — playable solo, no multiplayer required. Shares Indie with Suborbital.
A space-sim and roguelite where you build your own ship and live in it. Survive in a procedural galaxy that escalates into full faction warfare.