Single-player games like Cradle-18
Below are 8 single-player Steam games similar to Cradle-18, 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 Cradle-18 page.
Ranked picks
- 1
Above Earth
Single-player alternative to Cradle-18 — playable solo, no multiplayer required. Shares Indie and Adventure with Cradle-18.
Above Earth is a science fiction survival game. Experience a struggle for life in the fragile artificial environment of a damaged space station.
- 2
OUTER WATCH
Single-player alternative to Cradle-18 — playable solo, no multiplayer required. Shares Indie with Cradle-18.
YOU ARE THE ONLY HUMAN ON THE SPACE STATION. YOU DON’T KNOW HOW YOU GOT HERE. KEEP IT ALIVE. TRY TO SURVIVE.
- 3
Starship Fighters: Space Combat Simulator
Single-player alternative to Cradle-18 — playable solo, no multiplayer required. Shares Indie and Adventure with Cradle-18.
Pilot your starship in Starship Fighters, a realistic space combat simulator. Engage in intense battles, explore vast galaxies, and unleash destruction with an arsenal of powerful weapons in a universe teeming with enemies!
- 4
Abyss Drifter
Single-player alternative to Cradle-18 — playable solo, no multiplayer required. Shares Indie and Adventure with Cradle-18.
A space courier game about atmosphere, survival and navigation. Deliver cargo between planets and stations in a lonely, dangerous star system where every journey depends on your skill.
- 5
Astrometica: Prologue
Single-player alternative to Cradle-18 — playable solo, no multiplayer required. Shares Indie and Adventure with Cradle-18.
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.
- 6
Astrometica
Single-player alternative to Cradle-18 — playable solo, no multiplayer required. Shares Indie and Adventure with Cradle-18.
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.
- 7
INTERASTRA: Planet Survival
Single-player alternative to Cradle-18 — playable solo, no multiplayer required. Shares Adventure with Cradle-18.
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.
- 8
No Man's Sky
Single-player alternative to Cradle-18 — playable solo, no multiplayer required. Shares Adventure with Cradle-18.
No Man's Sky is a game about exploration and survival in an infinite procedurally generated universe.