Single-player games like Isotopia
Below are 8 single-player Steam games similar to Isotopia, 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 Isotopia page.
Ranked picks
- 1
SurvivalWorld
Single-player alternative to Isotopia — playable solo, no multiplayer required. Shares Action and Indie with Isotopia.
Start your adventure in a new world, inhabited by different creatures, fight to survive, build what you want, tame creatures, exploring caves or biome and experience their challenges
- 2
Cube Worlds Survival
Single-player alternative to Isotopia — playable solo, no multiplayer required. Shares Action and Adventure with Isotopia.
SURVIVE. EXPLORE. UPGRADE. FIGHT. An endless rogue like shooter RPG game
- 3
Tesera
Single-player alternative to Isotopia — playable solo, no multiplayer required. Shares Action and Indie with Isotopia.
Tesera is a sci-fi sandbox game in a mysterious alien world. Explore an endless voxel world, defend yourself against aggressive creatures and drones, building your dream settlement alone or with friends.
- 4
Shrouded Frontier
Single-player alternative to Isotopia — playable solo, no multiplayer required. Shares Action and Indie with Isotopia.
Play as a low level bounty hunter known as Wraith. Customize the character with different gadgets and weapons that you find or purchase to hunt bounty contracts from multiple entities any way you desire. Bring them in dead or alive for different payouts and extensive freedom of approach gameplay.
- 5
AcidPunk : Echoes of Doll City
Single-player alternative to Isotopia — playable solo, no multiplayer required. Shares Indie and Adventure with Isotopia.
ACIDPUNK will immerse you deep into the dystopian metropolis of Doll City . Embark on a VR journey to a dark and psychedelic cyberpunk universe. Experience vibrant and trippy visuals while listening to a carefuly crafted soundtrack taking its inspiration from synthwave and psychedelic rock classics.
- 6
The Outer Worlds: Spacer's Choice Edition
Single-player alternative to Isotopia — playable solo, no multiplayer required. Shares Action and Adventure with Isotopia.
The Outer Worlds: Spacer’s Choice Edition is the ultimate way to play the award-winning RPG from Obsidian Entertainment and Private Division. Including the base game and all DLC, this remastered masterpiece is the absolute best version of The Outer Worlds.
- 7
M.A.S.S. Builder
Single-player alternative to Isotopia — playable solo, no multiplayer required. Shares Action and Indie with Isotopia.
Commander, customize and build your Mechanical Assault Skeleton Suit (M.A.S.S.) and lead the fight against an alien invasion bent on exterminating the human race. The fate of humanity is in your hands.
- 8
Chernobylite 2: Exclusion Zone
Single-player alternative to Isotopia — playable solo, no multiplayer required. Shares Action and Indie with Isotopia.
Explore the mysterious, beautiful, yet dark world of the Chornobyl Exclusion Zone in this post-apocalyptic action-RPG. Make your mark on this world, through your character development, choices and playstyle. But remember – everything has a price and consequences.