Single-player games like Untethered
Below are 8 single-player Steam games similar to Untethered, 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 Untethered page.
Ranked picks
- 1
Space
Single-player alternative to Untethered — playable solo, no multiplayer required. Shares Adventure and Simulation with Untethered.
Stranded on a hostile alien world, you must gather resources, craft tools, and automate production to survive. Build a base, fend off deadly wildlife, and uncover ancient secrets in this immersive sci-fi survival adventure. Will you conquer the planet or succumb to its perils?
- 2
Industronaut
Single-player alternative to Untethered — playable solo, no multiplayer required. Shares Adventure and Simulation with Untethered.
A survival engineering game where you build life support habitats, mine resources, and automate production chains on a radiation heavy planet. No rescue. No support. Just engineering.
- 3
Lunar Impact
Single-player alternative to Untethered — playable solo, no multiplayer required. Shares Adventure and Simulation with Untethered.
Go to the Moon to explore its harsh nature and mysterious anomalies. Build your own lunar base, craft equipment, extract valuable resources and make many discoveries. Overcome the challenges of extreme lunar conditions, an oxygen-free atmosphere and much more unknown...
- 4
MORS
Single-player alternative to Untethered — playable solo, no multiplayer required. Shares Adventure and Simulation with Untethered.
Build an automated factory on a true-scale Mars streamed from real NASA terrain. Mine, smelt and belt resources, run trains between outposts, master chemistry, and grow from a lone lander into a planet-spanning industry while the real Martian weather does its worst.
- 5
SpaceCraft
Single-player alternative to Untethered — playable solo, no multiplayer required. Shares Adventure and Simulation with Untethered.
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
Blossom: The Seed of Life
Single-player alternative to Untethered — playable solo, no multiplayer required. Shares Adventure with Untethered.
Terraform a dead planet back to life in this open world survival crafting game. Explore ruins, gather resources, print machines, drive modular vehicles, grow forests, biomes, and ecosystems. Create life and make it thrive with your own hands.
- 7
StarRupture
Single-player alternative to Untethered — playable solo, no multiplayer required. Shares Adventure and Simulation with Untethered.
StarRupture is a first-person open world base-building game with advanced combat and tons of exploration. Play alone or in a group on this sublime and ever-changing planet, extract and manage resources, create your complex industrial system and fight off hordes of alien monsters.
- 8
Satisfactory
Single-player alternative to Untethered — playable solo, no multiplayer required. Shares Adventure and Simulation with Untethered.
Satisfactory is a first-person open-world factory building game with a dash of exploration and combat. Play alone or with friends, explore an alien planet, create multi-story factories, and enter conveyor belt heaven!