Single-player games like Terraspace
Below are 11 single-player Steam games similar to Terraspace, 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 Terraspace page.
Ranked picks
- 1

Exone Rift
Single-player alternative to Terraspace — playable solo, no multiplayer required. Shares Adventure with Terraspace.
Take direct control of your hero on a hostile planet. Build your base, gather resources, expand your territory your way, and survive against the planet’s deadly wildlife.
- 2

Desktop Mars
Single-player alternative to Terraspace — playable solo, no multiplayer required. Shares Casual with Terraspace.
Colonize Mars on your wallpaper. A relaxing and interactive game that takes place in the background. It's perfect if you want to change your boring wallpaper.
- 3

Stellar Settlers: Space Base Builder
Single-player alternative to Terraspace — playable solo, no multiplayer required. Shares Casual with Terraspace.
Stellar Settlers is a chill space base/city builder and colony sim game. With unique vertical and horizontal base-building gameplay, settle on 10 hostile alien planets and build your own thriving colony. Get enough materials to build a physics-based Spaceship and try to escape from disasters.
- 4

Surviving Mars
Single-player alternative to Terraspace — playable solo, no multiplayer required.
There will be challenges to overcome. Execute your strategy and improve your colony’s chances of survival while unlocking the mysteries of this alien world. Are you ready? Mars is waiting for you.
- 5

CosmoOdyssey:Trip to Mars
Single-player alternative to Terraspace — playable solo, no multiplayer required. Shares Adventure and Casual with Terraspace.
CosmoOdyssey: Trip to Mars is a first-person spaceship adventure with a special Ukrainian flavor.
- 6

Space Colony: Steam Edition
Single-player alternative to Terraspace — playable solo, no multiplayer required.
Space Colony: Steam Edition is a remaster of the real-time base builder and strategy game from Firefly Studios, creators of the Stronghold series. In Space Colony you colonize to survive, designing intergalactic bases that keep your crew productive, happy and defended against hostile alien threats.
- 7

The Spatials: Galactology
Single-player alternative to Terraspace — playable solo, no multiplayer required.
The Spatials are back with Galactology! Design, build and protect your colony station from the many enemies you will make while exploring the galaxy and exploding their homeworlds.
- 8

The Final Earth 2
Single-player alternative to Terraspace — playable solo, no multiplayer required.
The Final Earth 2 is a vertical sci-fi city builder. Earth is unlivable, so you decide to create a space colony. Gather resources, then build and research your way to a better future! Grow your city from an exploration ship to a huge metropolis, full of advanced technology. What will you build?
- 9

Sleep
Single-player alternative to Terraspace — playable solo, no multiplayer required.
This has never been scarier. A story in which you will encounter unusual, strange places. Solve the mystery of this whole place and people who have lost their minds.
- 10

Diamond Hunt
Single-player alternative to Terraspace — playable solo, no multiplayer required. Shares Adventure and Casual with Terraspace.
A co-op horror game about searching for items to build a spaceship to escape a dying galaxy.
- 11

Sucker head: Bodycam
Single-player alternative to Terraspace — playable solo, no multiplayer required. Shares Adventure with Terraspace.
A co-op horror game. In it, players take on the role of a group of people who are trapped, full of dangers and horrors. The goal of the game is to get out by solving puzzles, avoiding traps and fighting monsters.