Games like COSMONAUT
If COSMONAUT is your kind of game, the closest matches are Terraria, Morbid: The Seven Acolytes and Lamentum — picked from the ranked list below. Each pick is ranked by what players of this game also play, shared genres and tags, and review-mined similarity — not a generic popularity list.
Get personalized picks →About COSMONAUT: Unravel the mystery surrounding the lost vessel Diogenes. A story-driven retro platformer with elements of horror. Use the zero-g suit to explore the eerie corridors of a derelict ship filled with unknown lifeforms and dark secrets.
Players who liked COSMONAUT also play
Steam players who put hours into COSMONAUT also tend to own these titles — a signal called collaborative filtering. imho.run cross-references millions of library ownership patterns to surface games whose real audiences overlap, regardless of whether their genre tags match.
Terraria
WHY THIS
Top pick for COSMONAUT fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with COSMONAUT.
Dig, fight, explore, build! Nothing is impossible in this action-packed adventure game. Four Pack also available!
Morbid: The Seven Acolytes
WHY THIS
Second-strongest match for COSMONAUT fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with COSMONAUT.
Morbid: The Seven Acolytes is a Horrorpunk Action RPG filled with Lovecraftian horrors and Cronenbergian gore, making it the most gruesome take on the isometric Souls-like genre yet!
Lamentum
WHY THIS
Third-strongest match for COSMONAUT fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with COSMONAUT.
Lamentum is a pixel art survival horror game, set in New England in the mid-nineteenth century.
ANIMAL WELL
WHY THIS
Ranked #4 for COSMONAUT fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with COSMONAUT.
Explore a dense, interconnected labyrinth, and unravel its many secrets. Collect items to manipulate your environment in surprising and meaningful ways. Encounter beautiful and unsettling creatures, as you attempt to survive what lurks in the dark. There is more than what you see.
CrossCode
WHY THIS
Ranked #5 for COSMONAUT fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with COSMONAUT.
A retro-inspired 2D Action RPG set in the distant future. CrossCode combines 16-bit SNES-style graphics with butter-smooth physics, a fast-paced combat system, and engaging puzzle mechanics, served with a gripping sci-fi story.
Shovel Knight: Treasure Trove
WHY THIS
Ranked #6 for COSMONAUT fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with COSMONAUT.
Shovel Knight: Treasure Trove is the complete Shovel Knight collection, containing all 5 games in the epic saga! Dig, blast, slash, and bash your way through a fantastical, 8-bit inspired world of pixel-perfect platforming, memorable characters, and world-class action-adventure gameplay.
Streets of Rogue
WHY THIS
Ranked #7 for COSMONAUT fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with COSMONAUT.
Fight, sneak, and hack your way through randomly generated cities. It's like Nuclear Throne meets Deus Ex, mixed with the anarchy of GTA. Rogue-lite meets immersive sim, and goes completely insane.
Demon Peak
WHY THIS
Ranked #8 for COSMONAUT fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with COSMONAUT.
In Demon Peak, you play as the nameless warrior, trapped inside the depths of an unholy Mountain. Explore the mysterious and perilous enviroments, fight against a multitude of different enemies and gather magical abilities to overcome the Mountain's evil inhabitants.
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Plays great on Steam Deck
Valve-Verified or Playable picks from the similar pool — ready to go on Deck out of the box.
Morbid: The Seven Acolytes
WHY THIS
Deck Verified — runs on Steam Deck out of the box. Shares Action and Indie with COSMONAUT.
Morbid: The Seven Acolytes is a Horrorpunk Action RPG filled with Lovecraftian horrors and Cronenbergian gore, making it the most gruesome take on the isometric Souls-like genre yet!
ANIMAL WELL
WHY THIS
Deck Verified — runs on Steam Deck out of the box. Shares Action and Indie with COSMONAUT.
Explore a dense, interconnected labyrinth, and unravel its many secrets. Collect items to manipulate your environment in surprising and meaningful ways. Encounter beautiful and unsettling creatures, as you attempt to survive what lurks in the dark. There is more than what you see.
Shovel Knight: Treasure Trove
WHY THIS
Deck Verified — runs on Steam Deck out of the box. Shares Action and Indie with COSMONAUT.
Shovel Knight: Treasure Trove is the complete Shovel Knight collection, containing all 5 games in the epic saga! Dig, blast, slash, and bash your way through a fantastical, 8-bit inspired world of pixel-perfect platforming, memorable characters, and world-class action-adventure gameplay.
Frequently asked about COSMONAUT
- Is COSMONAUT free to play?
- Yes — COSMONAUT is a free-to-play title on Steam. You can install and play it without buying anything, though some games include optional in-app purchases.
- What games are most similar to COSMONAUT?
- Based on Steam play patterns and shared genres/tags, the games most often recommended alongside COSMONAUT are Terraria, Morbid: The Seven Acolytes, Lamentum.
- Who developed COSMONAUT?
- COSMONAUT was developed by Neon Chasm, LLC.
imho.run ranks Steam game alternatives using a mix of collaborative filtering (ALS / iALS / EASE / LightGCN), content scoring over genres, categories, Steam tags, developers, and publishers, plus AI-extracted vibes mined from review text. The page above is generated in seed mode anchored on COSMONAUT.
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