Single-player games like Cosmorists
Below are 8 single-player Steam games similar to Cosmorists, 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 Cosmorists page.
Ranked picks
- 1
TerraTech Worlds
Single-player alternative to Cosmorists — playable solo, no multiplayer required. Shares Action and Indie with Cosmorists.
TerraTech Worlds is an open world, build-craft adventure game, set on an uncharted alien world. Play solo or with friends, explore your surroundings, craft unique vehicles, construct automated bases, and battle your way through hazards and enemies to harness the power of your environment
- 2
The Infected
Single-player alternative to Cosmorists — playable solo, no multiplayer required. Shares Action and Indie with Cosmorists.
The Infected is a sandbox, first-person, open-world survival game. Build bases, craft, farm, hunt, and survive changing seasons. Choose whether to face the hybrid “Vambies” or turn them off for a pure survival experience.
- 3
Core Keeper
Single-player alternative to Cosmorists — playable solo, no multiplayer required. Shares Action and Indie with Cosmorists.
Explore a vast cavern of creatures, relics and resources in a mining sandbox adventure for 1-8 players. Mine, build, fight, craft and farm to unravel the mystery of the ancient Core.
- 4
BLASTRONAUT
Single-player alternative to Cosmorists — playable solo, no multiplayer required. Shares Action and Indie with Cosmorists.
BLASTRONAUT is a mining game in a procedural alien world. Explore, extract and profit.
- 5
Eden Island
Single-player alternative to Cosmorists — playable solo, no multiplayer required. Shares Action and Indie with Cosmorists.
Eden Island is a beautiful survival game. As a survivor, you will explore and survive on a realistic tropical island, craft weapons against beasts, farm and hunt, build your own home.
- 6
Rising World
Single-player alternative to Cosmorists — playable solo, no multiplayer required. Shares Action and Indie with Cosmorists.
Rising World is a voxel based open-world sandbox game, featuring a procedurally generated world, playable in single and multi-player.
- 7
Valheim
Single-player alternative to Cosmorists — playable solo, no multiplayer required. Shares Action and Indie with Cosmorists.
A brutal exploration and survival game for 1-10 players, set in a procedurally-generated purgatory inspired by viking culture. Battle, build, and conquer your way to a saga worthy of Odin’s patronage!
- 8
Crashlands
Single-player alternative to Cosmorists — playable solo, no multiplayer required. Shares Action and Indie with Cosmorists.
Fight and tame alien beasts, craft resources into menacing weaponry, befriend the outlandish locals, and go toe-to-chin with a world-domineering maniac.