Single-player games like Cosmos
Below are 9 single-player Steam games similar to Cosmos, 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 Cosmos page.
Ranked picks
- 1
One Step From Eden
Single-player alternative to Cosmos — playable solo, no multiplayer required. Shares Action and Indie with Cosmos.
Build a powerful deck, cast spells on the fly, battle evolving enemies, find game-changing artifacts, make friends or make enemies, just make it to Eden.
- 2
ScourgeBringer
Single-player alternative to Cosmos — playable solo, no multiplayer required. Shares Action and Indie with Cosmos.
ScourgeBringer is a fast-paced free-moving roguelite platformer. Help Kyhra to explore the unknown and slash her way through ancient machines guarding the seal of her past, and maybe the redemption of humanity.
- 3
Overture
Single-player alternative to Cosmos — playable solo, no multiplayer required. Shares Action and Indie with Cosmos.
Overture is an action-adventure roguelike which draws heavy inspiration from hits such as Diablo, Realm of The Mad God, Zelda, and The Binding of Isaac. Explore vast randomly generated dungeons and slay hordes of cunning enemies!
- 4
Nuclear Throne
Single-player alternative to Cosmos — playable solo, no multiplayer required. Shares Action and Indie with Cosmos.
Nuclear Throne is a post-apocalyptic roguelike-like top-down shooter. Not 'the final hope of humanity' post-apocalyptic, but 'humanity is extinct and mutants and monsters now roam the world' post-apocalyptic. Can you reach the Nuclear Throne?
- 5
Wizard of Legend
Single-player alternative to Cosmos — playable solo, no multiplayer required. Shares Action and Indie with Cosmos.
Wizard of Legend is a no-nonsense, action-packed take on wizardry that emphasizes precise movements and smart comboing of spells in a rogue-like dungeon crawler that features over a hundred unique spells and relics!
- 6
Dunjungle
Single-player alternative to Cosmos — playable solo, no multiplayer required. Shares Action and Indie with Cosmos.
A 2d action-packed roguelite about a monkey hero protecting the jungle from the rise of a corruptive power. Explore ever-changing dungeons, fight weird enemies and gear up with lots of weapons and relics you can combine for a new experience every run. Explore, fight, die, and repeat!
- 7
Hell is Other Demons
Single-player alternative to Cosmos — playable solo, no multiplayer required. Shares Action and Indie with Cosmos.
Hell is Other Demons is an action-platform shooter, with Roguelite elements. Explore a sprawling, hand-crafted world full of demons, insanely over-the-top boss fights, and a heavy synthwave soundtrack.
- 8
Flinthook
Single-player alternative to Cosmos — playable solo, no multiplayer required. Shares Action and Indie with Cosmos.
Live the life of space captain Flinthook! Armed with your mighty hookshot, your uncanny slow-motion powers and your trusty blasma pistol, plunder and fight your way through an infinite variety of randomly-assembled spaceships for treasure, loot and fame!
- 9
Castle On The Hill
Single-player alternative to Cosmos — playable solo, no multiplayer required. Shares Indie with Cosmos.
Tower defence city builder with sieges, custom buildings, policies, happiness and random world events