Games like Ostranauts
If Ostranauts is your kind of game, the closest matches are Starminer, Belt Colony and Starpoint Gemini 2 — picked from the ranked list below. Reviewers single out its atmospheric, contemplative and immersive. 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 Ostranauts: Navigate your scrappy ship through the boneyard in search of valuable parts in abandoned vessels. Use salvage to upgrade your ship, or sell it for cash to pay down your mounting debt, or restock fuel, air, or food. Fly and role-play aboard your dream spaceship in this hardcore noir space-sim.
Players who liked Ostranauts also play
Steam players who put hours into Ostranauts 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.
Starminer
WHY THIS
Top pick for Ostranauts fans by collaborative filtering across millions of Steam libraries. Shares Indie and Simulation with Ostranauts.
Design and build a massive interstellar fleet in this simulation sandbox. Strip space of its minerals for profit, but stay alert: your greed attracts the alien. Master deep base-building and deploy warships to protect your empire in immersive real-time space.
Belt Colony
WHY THIS
Second-strongest match for Ostranauts fans by collaborative filtering across millions of Steam libraries. Shares Indie and Simulation with Ostranauts.
The year is 2040. You, an ex-sergeant, have signed a contract with a large mining corporation in the Belt. Mine ore, build out your outpost, travel to nearby asteroids and collaborate with other belters.
Starpoint Gemini 2
WHY THIS
Shares an immersive mood with Ostranauts.
Third-strongest match for Ostranauts fans by collaborative filtering across millions of Steam libraries. Shares Simulation and RPG with Ostranauts.
Captain your own space ship and roam the galaxy in 3D in this tactical space simulator with tons of RPG depth ! Space has never looked so inviting - but images can betray...It has been two years since the end of the second Gemini war, the situation in the wartorn system is further from resolution than ever.
Evochron Mercenary
WHY THIS
Shares an atmospheric mood with Ostranauts.
Ranked #4 for Ostranauts fans by collaborative filtering across millions of Steam libraries. Shares Indie and Simulation with Ostranauts.
The life of an independent mercenary is rarely without excitement. Your spacecraft awaits and your adventure begins in the Sapphire star system.
Starpoint Gemini 3
WHY THIS
Ranked #5 for Ostranauts fans by collaborative filtering across millions of Steam libraries. Shares Indie and Simulation with Ostranauts.
Fight, loot, explore and craft in the living open world of Starpoint Gemini 3. Assemble your trusty ship and boost your RPG skills to face all challenges.
Asteroid Rodeo
WHY THIS
Ranked #6 for Ostranauts fans by collaborative filtering across millions of Steam libraries. Shares Indie and Simulation with Ostranauts.
Asteroids are worth trillions. They're also spinning at 200 meters per second. You are a Wrangler—harpoon tumbling rocks, wrestle them to a dead stop with your custom-built ship, and mine them for credits. The pay is good. The survival rate is a conversation people avoid.
No Man's Sky
WHY THIS
Shares an atmospheric mood with Ostranauts.
Ranked #7 for Ostranauts fans by collaborative filtering across millions of Steam libraries.
No Man's Sky is a game about exploration and survival in an infinite procedurally generated universe.
Out of Orbit
WHY THIS
Ranked #8 for Ostranauts fans by collaborative filtering across millions of Steam libraries. Shares Indie with Ostranauts.
Design, build, or pirate spaceships. Build bases on planets. Explore endless randomly generated universes, travel through black holes, command your crew, survive cosmic events, collect and trade materials, battle epic bosses, and much more. The sky is the limit, literally!
Reviewers mention these as similar to Ostranauts
Surfaced from review text: when other players write 'if you liked X, try Y', we catch the name and resolve it back to a Steam game.
NEO Scavenger
WHY THIS
Shares a stressful mood with Ostranauts.
Reviewers of Ostranauts cross-mention this title as a similar play. Shares Indie and RPG with Ostranauts.
NEO Scavenger is a game where you must survive in the wasteland long enough to figure out who you are. Each turn, you must decide where to go, how to scavenge for supplies, and how to deal with anything and anyone you encounter.
RimWorld
WHY THIS
Shares an immersive mood with Ostranauts.
Reviewers of Ostranauts cross-mention this title as a similar play. Shares Indie and Simulation with Ostranauts.
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.
The Expanse
WHY THIS
Reviewers of Ostranauts cross-mention this title as a similar play. Shares Early Access with Ostranauts.
You and your team are elite killers. Its your job to help defend and protect earth and inform us of your findings. The South East Spaceport have reported nightmareish zombies. The most unsettling thing is that people have changed and will not stop eating each other.
Project Zomboid
WHY THIS
Shares a stressful mood with Ostranauts.
Reviewers of Ostranauts cross-mention this title as a similar play. Shares Indie and Simulation with Ostranauts.
Project Zomboid is the ultimate in zombie survival. Alone or in MP: you loot, build, craft, fight, farm and fish in a struggle to survive. A hardcore RPG skillset, a vast map, massively customisable sandbox and a cute tutorial raccoon await the unwary. So how will you die? All it takes is a bite..
Firefly
WHY THIS
Reviewers of Ostranauts cross-mention this title as a similar play.
This is a relaxing and casual simulation game. Use tools such as countdown and focus alarm to improve your focus efficiency. Talk and interact with your partners to improve their favorability. The game scenes include classrooms, future cities, train compartments and ordinary houses.
Stationeers
WHY THIS
Shares a stressful mood with Ostranauts.
Reviewers of Ostranauts cross-mention this title as a similar play. Shares Indie and Simulation with Ostranauts.
Stationeers puts you in control of the construction and management of a space station to run by yourself or online with your friends. Complex atmospheric, electrical, manufacturing, agriculture, and gravitational systems require your thought and management at all times!
Kenshi
WHY THIS
Reviewers of Ostranauts cross-mention this title as a similar play. Shares Indie and Simulation with Ostranauts.
A free-roaming squad based RPG. Focusing on open-ended sandbox gameplay features rather than a linear story. Be a trader, a thief, a rebel, a warlord, an adventurer, a farmer, a slave, or just food for the cannibals. Train your men up from puny victims to master warriors.
Hardspace: Shipbreaker
WHY THIS
Shares an atmospheric mood with Ostranauts.
Reviewers of Ostranauts cross-mention this title as a similar play. Shares Simulation with Ostranauts.
Equipped with cutting-edge salvaging tech, carve & slice spaceships to recover valuable materials. Upgrade your gear to take on more lucrative contracts and pay your billion credits debt to LYNX Corp!
Cheaper alternatives
Games in the same vein priced at least 40% below Ostranauts at current Steam store prices.
Garry's Mod
WHY THIS
Priced ~69% under Ostranauts on Steam right now. Shares Indie and Simulation with Ostranauts.
Garry's Mod is a physics sandbox. There aren't any predefined aims or goals. We give you the tools and leave you to play.
Vampire Survivors
WHY THIS
Priced ~69% under Ostranauts on Steam right now. Shares Indie and RPG with Ostranauts.
Mow down thousands of night creatures and survive until dawn! Vampire Survivors is a gothic horror casual game with rogue-lite elements, where your choices can allow you to quickly snowball against the hundreds of monsters that get thrown at you. Be the bullet hell!
R.E.P.O.
WHY THIS
Priced ~56% under Ostranauts on Steam right now. Shares Early Access with Ostranauts.
An online co-op horror game with up to 6 players. Locate valuable, fully physics-based objects and handle them with care as you retrieve and extract to satisfy your creator's desires.
PEAK
WHY THIS
Priced ~50% under Ostranauts on Steam right now. Shares Indie with Ostranauts.
PEAK is a co-op climbing game where the slightest mistake can spell your doom. Either solo or as a group of lost nature scouts, your only hope of rescue from a mysterious island is to scale the mountain at its center. Do you have what it takes to reach the PEAK?
Slay the Spire
WHY THIS
Priced ~61% under Ostranauts on Steam right now. Shares Indie with Ostranauts.
We fused card games and roguelikes together to make the best single player deckbuilder we could. Craft a unique deck, encounter bizarre creatures, discover relics of immense power, and Slay the Spire!
Inscryption
WHY THIS
Priced ~50% under Ostranauts on Steam right now. Shares Indie with Ostranauts.
Inscryption is an inky black card-based odyssey that blends the deckbuilding roguelike, escape-room style puzzles, and psychological horror into a blood-laced smoothie. Darker still are the secrets inscrybed upon the cards...
Cookie Clicker
WHY THIS
Priced ~69% under Ostranauts on Steam right now. Shares Indie and Simulation with Ostranauts.
An idle game about making cookies! Originally released in 2013 on the web, and actively developed since then. This is the official version for Steam.
WEBFISHING
WHY THIS
Priced ~69% under Ostranauts on Steam right now. Shares Indie with Ostranauts.
WEBFISHING a multiplayer chatroom-focused fishing game! Relax and fish (on the web!)
Free alternatives
Free-to-play games that recommended players of this title also tend to enjoy.
Paper Lily - Chapter 1
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie and RPG with Ostranauts.
Paper Lily is an RPG horror game in which you can solve puzzles in different ways. Explore a hidden world, meet strange characters, and guide Lacie as she attempts to find answers about her unusual condition.
Project Kat - Paper Lily Prologue
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie and RPG with Ostranauts.
Project Kat is a short, unconventional RPG horror game in which there is always another way. Solve puzzles, make friends (or not), and guide Kat as she attempts to uncover the mystery behind a strange golden letter.
SuchArt: Creative Space
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie and Simulation with Ostranauts.
Paint on any surfaces with numerous tools in Creative Space — a free sandbox version of SuchArt: Genius Artist Simulator. Create masterpieces, complete commissions, and decorate your studio in the most advanced artist sim!
Crime Scene Cleaner: Prologue
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Simulation with Ostranauts.
When there’s a call, you are the man to clean up after your client’s dirty job. Siding with the mafia is a dangerous game, but they pay well, and you need money, right? So take your mop and better remove those bloodstains quickly before the police come.
The Riftbreaker: Prologue
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie with Ostranauts.
The Riftbreaker: Prologue allows you to experience the events taking place before the story campaign of the main game. Explore an entirely new world. Gather resources. Build up a base. Defend yourself from thousands of alien creatures.
The Last Sovereign
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie and RPG with Ostranauts.
Explore a world torn between armies of lust and purity in which everything is more complex than it seems, deciding the fate of nations through might, politics, and finance. Every decision matters in an intricate saga that tracks thousands of variables.
The Test: Secrets of the Soul 2
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie and Simulation with Ostranauts.
You will answer questions that will reveal things deep within. Some will be uncomfortable, but with great knowledge comes great sacrifice. Can you make it all the way through The Test, and are you SURE you want the answers you seek? For it is time to once again unlock "Secrets of the Soul..."
SCP – Containment Breach
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie with Ostranauts.
A procedural first-person horror adventure. You are on your own after something goes terribly wrong in this top-secret containment facility. Collect items to aid in your escape and try to uncover the truth, as horror lurks behind every door. Can you make it out alive?
Narrow it down
Head-to-head comparisons
Frequently asked about Ostranauts
- Is Ostranauts verified for Steam Deck?
- Yes — Ostranauts is Steam Deck Verified, meaning Valve has confirmed it runs well on the Deck with full controller, text legibility, and default configuration support.
- How much does Ostranauts cost?
- Ostranauts is listed on Steam at 15.99 USD (current store price; Steam sales may reduce this temporarily).
- What games are most similar to Ostranauts?
- Based on Steam play patterns and shared genres/tags, the games most often recommended alongside Ostranauts are Starminer, Belt Colony, Starpoint Gemini 2.
- Who developed Ostranauts?
- Ostranauts was developed by Blue Bottle Games and published by Kitfox Games.
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 Ostranauts.
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