Single-player games like Gaia
Below are 11 single-player Steam games similar to Gaia, 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 Gaia page.
Ranked picks
- 1
Outpost Zero
Single-player alternative to Gaia — playable solo, no multiplayer required. Shares Action and Indie with Gaia.
Outpost Zero blends the genres of Multiplayer Base Building Survival and Simulation games in a Sci-Fi universe. On a lawless alien world, robotic scouts are tasked with building an Outpost for human colonists. Command AI minions, colonize the planet, and survive the perils of Gaiya.
- 2
Road to Eden
Single-player alternative to Gaia — playable solo, no multiplayer required. Shares Action and Indie with Gaia.
Road to Eden is a third-person multiplayer survival coop game, set within the post-apocalyptic ruins of a world destroyed by an alien invasion. You wake up at the side of the road with no memory and must team up with other survivors to make the long and dangerous journey to Eden.
- 3
Satisfactory
Single-player alternative to Gaia — playable solo, no multiplayer required. Shares Strategy and Indie with Gaia.
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!
- 4
Planetaries
Single-player alternative to Gaia — playable solo, no multiplayer required. Shares Action and Indie with Gaia.
Experience a vast Sci-fi open-world survival TD game set on a distant planet deep in the universe. Craft, build, mine, trade, explore, and survive in this alien world. Collect Data and defend against waves of enemies seeking to banish you. Enjoy the adventure in Singleplayer or Multiplayer.
- 5
Journey Of Life
Single-player alternative to Gaia — playable solo, no multiplayer required. Shares Action and Indie with Gaia.
You have experienced the sudden loss of your wealth, which has compelled you to abandon your previous life and begin anew. By venturing into the game world, you can construct settlements and forge alliances with other players, ensuring that you will always have exciting challenges to undertake.
- 6
Dig or Die
Single-player alternative to Gaia — playable solo, no multiplayer required. Shares Action and Strategy with Gaia.
Crash land on a hostile planet where you'll have to build the strongest defenses if you wish to live to escape from it. But be warned... this planet is merciless. Build strong, and smart; else physics may flood or destroy your only hopes of survival.
- 7
Eden Crafters
Single-player alternative to Gaia — playable solo, no multiplayer required. Shares Strategy and Indie with Gaia.
Eden Crafters is a solo or co-op open-world survival, crafting, and factory-building game where you transform a hostile planet into a habitable haven for humanity. Build, automate, and terraform. Control the climate, create a breathable atmosphere, and turn toxic lakes into water: shape a new world!
- 8
The Front
Single-player alternative to Gaia — playable solo, no multiplayer required. Shares Action and Indie with Gaia.
The Front is a survival open-world crafting sandbox game. You are a resistance fighter sent back in time to stop the rise of a tyrannical empire. Collect resources, craft tech, build shelters, and fight monsters to accomplish your mission.
- 9
RimWorld
Single-player alternative to Gaia — playable solo, no multiplayer required. Shares Strategy and Indie with Gaia.
A sci-fi colony sim driven by an intelligent AI storyteller. Generates stories by simulating psychology, ecology, gunplay, melee combat, climate, biomes, diplomacy, interpersonal relationships, art, medicine, trade, and more.
- 10
GRAV
Single-player alternative to Gaia — playable solo, no multiplayer required. Shares Action and Indie with Gaia.
GRAV is a sand box experience where you explore a multitude of planets, hunt strange alien creatures, build and defend outposts, craft weapons and armor, and attempt to survive against other players in a hostile environment.
- 11
Empyrion - Galactic Survival
Single-player alternative to Gaia — playable solo, no multiplayer required. Shares Strategy and Indie with Gaia.
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!