Space Architect
Mine asteroids, build production lines, keep your crew fed and trade with passing ships to buy back your freedom.
73% of 305 Steam reviews are positivePlayers online now: 24$1.79
Games like Sci-fi builder
Loved how relaxing and chaotic Sci-fi builder can get? Start with these games when you are ready.
Startopia
A once thriving network of space stations and planets have been left lifeless, redundant scars of the apocalypse. Into this age of darkness comes light. You will lead the way in rebuilding the network of space stations to a standard accepted by the individual alien races, attracting them to harness their expertise and research new...
Relaxing, Funny
91% of 845 Steam reviews are positivePlayers online now: 5$6.99Galaxy Pass Station
Build a space station for 15 alien races! 👽 Inspect IDs, catch criminals, and manage a chaotic galactic hub. A vibrant mix of colony sim & document-checking action. Can you build the ultimate hotel?
Relaxing, Chaotic, Funny
84% of 244 Steam reviews are positive$11.99The Spatials: Galactology
The Spatials are back with Galactology! Design, build and protect your colony station from the many enemies you will make while exploring the galaxy and exploding their homeworlds.
Relaxing
68% of 232 Steam reviews are positive$12.99Astrobuilder
An AI-driven space management RPG in a living galaxy. Explore 150+ planets and interact with 600+ NPCs whose lives and relationships evolve over time. Trade, run shops, build a Commerce Guild, join Military Factions, govern planets, and command fleets in war. Your every choice reshape the galaxy.
88% of 354 Steam reviews are positive$14.99Stellar Settlers: Space Base Builder
Stellar Settlers is a chill space base/city builder and colony sim game. With unique vertical and horizontal base-building gameplay, settle on 10 hostile alien planets and build your own thriving colony. Get enough materials to build a physics-based Spaceship and try to escape from disasters.
Relaxing, Chaotic
69% of 748 Steam reviews are positivePlayers online now: 1$11.99Heliopolis Six
Embark on a cosmic odyssey as the director of your own space station in a galaxy full of wonders. Skillful management is vital as you construct and connect station components, oversee resource handling, and guide your space haven to reach new heights amidst the stars.
Relaxing
53% of 32 Steam reviews are positive$17.99Space Station Alpha
Build and manage a space station in the outer reaches of space. The challenges will be many, oxygen will escape through every tiny hole in the hull, you'll contend with asteroid showers and nebulous alien blobs.
Chaotic
48% of 40 Steam reviews are positive$5.99The Final Earth 2
The Final Earth 2 is a vertical sci-fi city builder. Earth is unlivable, so you decide to create a space colony. Gather resources, then build and research your way to a better future! Grow your city from an exploration ship to a huge metropolis, full of advanced technology. What will you build?
Relaxing
97% of 421 Steam reviews are positivePlayers online now: 8$9.99Astro Colony
Astro Colony is a relaxed automation game in an endless procedurally generated universe. Build conveyor networks, move and dock your stations, recruit astronauts and research new tech, alone or with friends. No timers, no punishing failure: just you, a growing colony and a galaxy of voxel planets to strip for parts.
Relaxing
80% of 2,440 Steam reviews are positivePlayers online now: 106$19.99Space Haven
Build a spaceship tile by tile, keep its air breathable and its crew fed, then jump it toward a new home. Space Haven is a colony sim about designing the ship, managing fragile civilians inside it, and salvaging what you need from derelicts, asteroids, and rival factions along the way.
85% of 10,433 Steam reviews are positivePlayers online now: 626$24.99Approximately Up
Bolt together a spaceship from thousands of parts, wire up its systems, then fly it in first person to 15 strange planets. Solo or with up to four friends, every mission asks something new of your ship, and every mistake becomes a story. Build it, launch it, and find out what happens.
Relaxing, Chaotic
93% of 1,149 Steam reviews are positivePlayers online now: 86$18.74AstroScaper
Colonize barren asteroids and transform them into thriving space colonies. Discover powerful building synergies, solve satisfying placement puzzles, and journey from one procedurally generated world to the next.
Relaxing
100% of 17 Steam reviews are positive$9.99
Cheaper than Sci-fi builder
Midnight Moments
A small, cyberpunk diorama-building game where you create cozy rain-soaked backstreets, glowing apartment blocks, or quiet neighbourhood corners.
84% of 141 Steam reviews are positive$2.99
Technicity
A first-person city-building game with powerful tools that allow you to build faster and bigger.
74% of 201 Steam reviews are positivePlayers online now: 4$1.79
Build In Space
Build In Space is a relaxing tycoon game where you can grow crops, build your base, and raise animals.
100% of 1 Steam reviews are positive$0.99
Super-Spatial
Explore, build, and master the art of automation. Build your base, discover colorful new worlds, and develop new technologies as you tame the far…
50% of 2 Steam reviews are positive$0.99
Rogue AI Simulator
Play as a Rogue Artificial Intelligence, in the sequel to the hit Flash game "I'm an Insane Rogue AI", played more than 4 million times!
82% of 366 Steam reviews are positive$11.99
Interstellar Pilot 2
The hit mobile game Interstellar Pilot 2 has come to Steam. Join the TEF forces heading to the Gatopean sector to find a new home for mankind.
89% of 157 Steam reviews are positivePlayers online now: 3$0.99
Sand:box
Mix pixel particles into contraptions, from simple circuits to floods of sand, all at your own unhurried pace.
93% of 1,719 Steam reviews are positivePlayers online now: 24$1.99
My House
Build your house according to your desires in My House! Let your creativity express itself in a chill atmosphere!
59% of 135 Steam reviews are positive$0.69
Home Creator
Home Creator provides you with a set of tools to create your dream home!
15% of 13 Steam reviews are positive$0.99
Planet Factory
A small quick game about building a factory to launch planets into a solar system!
86% of 28 Steam reviews are positive$0.99
Infinite Space: Mining
Build and automate your own industrial space empire. Mine asteroids, manage logistics, expand production lines with drones and conveyors, explore…
67% of 6 Steam reviews are positive$0.99
Hidden gems like Sci-fi builder
Approximately Up
Assemble a ship from thousands of parts, wire its systems together, and take it to fifteen strange planets, alone or with friends.
93% of 1,149 Steam reviews are positivePlayers online now: 86$18.74
Astrobuilder
An AI-driven space management RPG in a living galaxy. Explore 150+ planets and interact with 600+ NPCs whose lives and relationships evolve over time.
88% of 354 Steam reviews are positive$14.99
Astro Colony
Set up conveyor networks, dock your stations and research new tech at your own pace, alone or with friends.
80% of 2,440 Steam reviews are positivePlayers online now: 106$19.99
Alien Market Simulator
Run a market on your space station. Restore and upgrade the station, expand your services, and sell to a variety of alien customers.
81% of 127 Steam reviews are positive$12.99
Dystopika
Stack neon towers and giant holograms into a cyberpunk skyline with no goals to chase, then sit back and watch it shine.
95% of 3,469 Steam reviews are positivePlayers online now: 16$6.99
The Final Earth 2
The Final Earth 2 is a vertical sci-fi city builder. Earth is unlivable, so you decide to create a space colony.
97% of 421 Steam reviews are positivePlayers online now: 8$9.99
Space Haven
Build a spaceship tile by tile, keep its air breathable and its crew fed, then jump it toward a new home.
85% of 10,433 Steam reviews are positivePlayers online now: 626$24.99
Galaxy Pass Station
Build a space station for 15 alien races! 👽 Inspect IDs, catch criminals, and manage a chaotic galactic hub.
84% of 244 Steam reviews are positive$11.99
Out of Orbit
Design, build, or pirate spaceships. Build bases on planets.
80% of 176 Steam reviews are positive$14.99
Space Architect
Mine asteroids, build production lines, keep your crew fed and trade with passing ships to buy back your freedom.
73% of 305 Steam reviews are positivePlayers online now: 24$1.79
Stellar Settlers: Space Base Builder
Stellar Settlers is a chill space base/city builder and colony sim game.
69% of 748 Steam reviews are positivePlayers online now: 1$11.99
Next Space Rebels
SPACE IS FOR EVERYONE. In Next Space Rebels, you will develop from a naive rocket hobbyist into an experienced space activist by designing…
83% of 328 Steam reviews are positive$19.99
Newest games like Sci-fi builder
AstroScaper
Colonize barren asteroids and transform them into thriving space colonies.
100% of 17 Steam reviews are positive$9.99
Astrobuilder
An AI-driven space management RPG in a living galaxy. Explore 150+ planets and interact with 600+ NPCs whose lives and relationships evolve over time.
88% of 354 Steam reviews are positive$14.99
Approximately Up
Assemble a ship from thousands of parts, wire its systems together, and take it to fifteen strange planets, alone or with friends.
93% of 1,149 Steam reviews are positivePlayers online now: 86$18.74
StarShip-DF
Build a massive multi-deck starship and lead colonists across the galaxy. Gather resources in space or land on alien worlds for supplies.
100% of 33 Steam reviews are positivePlayers online now: 1$5.99
Deep Space Outpost
Deep Space Outpost is a space station building & survival game, involving resource and base management.
72% of 32 Steam reviews are positive$15.99
Astro Colony
Set up conveyor networks, dock your stations and research new tech at your own pace, alone or with friends.
80% of 2,440 Steam reviews are positivePlayers online now: 106$19.99
Alien Market Simulator
Run a market on your space station. Restore and upgrade the station, expand your services, and sell to a variety of alien customers.
81% of 127 Steam reviews are positive$12.99
Space Haven
Build a spaceship tile by tile, keep its air breathable and its crew fed, then jump it toward a new home.
85% of 10,433 Steam reviews are positivePlayers online now: 626$24.99
Creature Creation Station
A creative sandbox playground. Create characters, watch them play together, and easily share your creations with friends!
100% of 29 Steam reviews are positive$11.99
The Last Starship
Design a working starship from the reactor up, then take it into a fresh galaxy each run as a miner, pirate hunter or anything else you fancy.
75% of 1,644 Steam reviews are positivePlayers online now: 96$19.99
Adaptory
Deep in uncharted space, your expedition took a challenging turn when your ship crash-landed.
76% of 99 Steam reviews are positive$19.99
Legitimate Space Corp Simulator LLC
NOW HIRING: Station Manager! Run a totally-legit* space biz in Sector 7-G. Farm alien crops, refuel shady ships, and sell dangerously edible snacks.
67% of 83 Steam reviews are positive$8.05