Games like Fill the Sky
If Fill the Sky is your kind of game, the closest matches are Corsair Cove, Beyond These Stars and Steel Artery: Train City Builder — 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 Fill the Sky: A factory automation game where you are the mind of a self-replicating interstellar probe. Turn barren rock and ocean into sprawling industry that feeds the data centers you run on. Launch copies of yourself until they fill the sky. No enemies. Build at your own pace.

Players who liked Fill the Sky also play
Steam players who put hours into Fill the Sky 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.
Corsair Cove
WHY THIS
Top pick for Fill the Sky fans by collaborative filtering across millions of Steam libraries. Shares Strategy and Simulation with Fill the Sky.
Build a sprawling pirate haven, raise a fleet to explore the high seas, and take on the Crown to keep the Age of Piracy alive! From ale to flintlock pistols, and from scallywags to swashbucklers, you’ll need to manage complex production chains and govern a rowdy crew to reign supreme over the seas!
Beyond These Stars
WHY THIS
Second-strongest match for Fill the Sky fans by collaborative filtering across millions of Steam libraries. Shares Strategy and Simulation with Fill the Sky.
Build a city on the back of a Space Whale and learn to coexist as you journey through the stars. Manage intricate supply chains and the needs of your people as you build outposts, meet aliens, and uncover the mysteries of the universe.
Steel Artery: Train City Builder
WHY THIS
Third-strongest match for Fill the Sky fans by collaborative filtering across millions of Steam libraries. Shares Strategy and Simulation with Fill the Sky.
Build a living city on rails in this steampunk fantasy train-city builder. Manage multiracial colonies with thousands of autonomous citizens, balance their needs, manage the economy, and create logistics as you explore distant regions to ensure the prosperity of your Empire.
ALL WILL FALL
WHY THIS
Ranked #4 for Fill the Sky fans by collaborative filtering across millions of Steam libraries. Shares Strategy and Simulation with Fill the Sky.
Build massive ocean cities and lead your people to prosperity in this post-apocalyptic survival colony sim. Featuring a physics-based 3D construction system, complex resource management, exploration, difficult political decisions, supply chains, and a robust sandbox mode.
Whiskerwood
WHY THIS
Ranked #5 for Fill the Sky fans by collaborative filtering across millions of Steam libraries. Shares Strategy and Simulation with Fill the Sky.
Establish a home for your industrious mice under the oppressive paw of your cat overlords in this city builder featuring complex simulations, intricate production chains, and the age-old rivalry between cat and mouse.
Nova Roma
WHY THIS
Ranked #6 for Fill the Sky fans by collaborative filtering across millions of Steam libraries. Shares Strategy and Simulation with Fill the Sky.
The glory of Rome is at your fingertips in this city-building game where you must appease the gods, enact laws, and develop complex supply chains to meet the needs of your citizens.
Factory Town
WHY THIS
Ranked #7 for Fill the Sky fans by collaborative filtering across millions of Steam libraries. Shares Strategy and Simulation with Fill the Sky.
Build, automate, and optimize a giant factory on 3D terrain using conveyor belts, trains, chutes, pipes, and airships. Sell your goods to nearby villages to expand their borders, increase happiness, and unlock even better technology!
Foundation
WHY THIS
Ranked #8 for Fill the Sky fans by collaborative filtering across millions of Steam libraries. Shares Strategy and Simulation with Fill the Sky.
Foundation is a grid-less, laidback medieval city-building game with a focus on organic development, monument construction and resource management.
Free alternatives
Free-to-play games that recommended players of this title also tend to enjoy.
Magic Archery
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Simulation with Fill the Sky.
Train a commoner to become the greatest archer in this short incremental game! Increase your stats, gather wealth from quests, buy upgrades, and infuse your arrows with magic.
The Lab
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it.
Welcome to The Lab, a compilation of Valve’s room-scale VR experiments set in a pocket universe within Aperture Science. Fix a robot, defend a castle, adopt a mechanical dog, and more. Still not sold? It’s free!
DORONKO WANKO
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Simulation with Fill the Sky.
『DORONKO WANKO』 is a DORONKO Action Game. In this game, You can become a cute, innocent Pomeranian, make your master's home messy and dirty. "Will the master be angry with me?" Don't worry. Because you are a sweet doggie.
Landfall Archives
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Strategy with Fill the Sky.
Break into the Landfall Archives to steal and play previously unreleased games, demos, interactive slide shows, and even an unreleased version of Totally Accurate Battle Simulator from 2017!
SuchArt: Creative Space
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Simulation with Fill the Sky.
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!
Outpath: First Journey
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it.
Outpath: First Journey is a prologue chapter of the main game, Outpath. An experimental clicker base building game. Craft, gather & manage resources, build your base and buy more islands to exploit and expand!
The Riftbreaker: Prologue
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Strategy with Fill the Sky.
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.
Narrow it down
Head-to-head comparisons
Frequently asked about Fill the Sky
- What games are most similar to Fill the Sky?
- Based on Steam play patterns and shared genres/tags, the games most often recommended alongside Fill the Sky are Corsair Cove, Beyond These Stars, Steel Artery: Train City Builder.
- Who developed Fill the Sky?
- Fill the Sky was developed by Orbital Entry Studios.
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 Fill the Sky.
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