Games like Sigma World Online
If Sigma World Online is your kind of game, the closest matches are FluxWerks, StarDune and Build In Space — 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 Sigma World Online: Sigma World Online - is an online sandbox with a huge world from many star systems. Choose who to be: space explorer, miner, merchant, farmer, culinary specialist, scientist, builder or hunter, or build your empire.
Players who liked Sigma World Online also play
Steam players who put hours into Sigma World Online 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.
FluxWerks
WHY THIS
Top pick for Sigma World Online fans by collaborative filtering across millions of Steam libraries. Shares Simulation with Sigma World Online.
Every block of this planet is real, including fluids! Dig it, flood it, process it. FluxWerks is a factory automation game on a fully destructible voxel world with physical fluid and heat simulation. Dig anywhere, automate everything, and survey a world that was supposed to be empty.
StarDune
WHY THIS
Second-strongest match for Sigma World Online fans by collaborative filtering across millions of Steam libraries. Shares Indie with Sigma World Online.
Build, Fly, and Survive. StarDune combines tactile, modular construction with seamless space travel. Reshape vibrant voxel planets, automate your outposts, and explore a procedurally generated solar system alone or with friends in a world that’s yours to mold.
Build In Space
WHY THIS
Third-strongest match for Sigma World Online fans by collaborative filtering across millions of Steam libraries. Shares Simulation with Sigma World Online.
Build In Space is a relaxing tycoon game where you can grow crops, build your base, and raise animals.
Auto-Astra
WHY THIS
Ranked #4 for Sigma World Online fans by collaborative filtering across millions of Steam libraries. Shares Simulation with Sigma World Online.
Auto-Astra blends voxel-based construction with deep 4X automation. Design ships and stations, then write or use pre-made LUA scripts to automate your galactic empire. Strip asteroid belts, manage trade routes, and program tactical responses to enemy threats. Your logic, your empire.
Dual Universe
WHY THIS
Ranked #5 for Sigma World Online fans by collaborative filtering across millions of Steam libraries. Shares Simulation and Massively Multiplayer with Sigma World Online.
Dual Universe is a first-person Sci-Fi MMO built and driven by players, in a single persistent universe. You can build almost anything out of voxels, trade in a free economy, lead industries, travel through space, explore planets, or wage war in a fully editable sandbox universe. Subscription-based.
Mattami Restaurant & Cafe Tycoon
WHY THIS
Ranked #6 for Sigma World Online fans by collaborative filtering across millions of Steam libraries. Shares Simulation with Sigma World Online.
♪ Mattami is a restaurant tycoon game where you start with a tiny humble place and work your way up. Manage your staff, their schedule and inventory to efficiently grow your restaurant as elegant as possible.
Coasteroid
WHY THIS
Ranked #7 for Sigma World Online fans by collaborative filtering across millions of Steam libraries. Shares Indie and Simulation with Sigma World Online.
Build stellar rollercoasters across alien worlds, carve tunnels through planets, and launch trains into orbit. Customize every track element, scenery decoration, and environment before subjecting riders to the forces of the universe! The galaxy is your theme park!
SpaceCraft
WHY THIS
Ranked #8 for Sigma World Online fans by collaborative filtering across millions of Steam libraries. Shares Indie and Simulation with Sigma World Online.
The Universe is yours. SpaceCraft is an online space exploration and building game. Explore a vast galaxy of solar systems and planets, mine and craft resources, design and build ships, automate planetary bases and interplanetary logistics, trade and cooperate.
Free alternatives
Free-to-play games that recommended players of this title also tend to enjoy.
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!
SuchArt: Creative Space
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie and Simulation with Sigma World Online.
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 Sigma World Online.
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.
Outpath: First Journey
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie with Sigma World Online.
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 Indie with Sigma World Online.
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.
Jigsaw Puzzle Dreams
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie with Sigma World Online.
Beautiful Multiplayer Jigsaw Puzzle game where you can design the room you play in!
Liquidators
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie and Simulation with Sigma World Online.
Chernobyl, USSR, 1986. Three nuclear plant workers go on a daring mission to prevent a radioactive fallout that would affect half of Europe. Every moment is permanent, and all is at stake.
Narrow it down
Head-to-head comparisons
Frequently asked about Sigma World Online
- Does Sigma World Online have multiplayer or co-op?
- Yes — Sigma World Online supports multi-player play according to its Steam store listing (Multi-player, Online Co-op, Co-op).
- What games are most similar to Sigma World Online?
- Based on Steam play patterns and shared genres/tags, the games most often recommended alongside Sigma World Online are FluxWerks, StarDune, Build In Space.
- Who developed Sigma World Online?
- Sigma World Online was developed by Crematorium of Time.
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 Sigma World Online.
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