Games like Sirius
If Sirius is your kind of game, the closest matches are SPACERIFT: Arcanum System, Elite Dangerous and Space Travellers — picked from the ranked list below. Reviewers single out its atmospheric, challenging and contemplative. 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 Sirius: Sirius Online is a unique, easy to play Space Action Shooter with ongoing progression. Join the Ranks of the Terran Reclaim Forces or the Sirius Colonial Council today and fight for your Faction! Explore forgotten battlefields, find Treasures, create an empire and rule the universe!
Players who liked Sirius also play
Steam players who put hours into Sirius 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.
SPACERIFT: Arcanum System
WHY THIS
Shares an atmospheric mood with Sirius.
Top pick for Sirius fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Sirius.
At the sunset of human life on planet Earth, you are a military pilot controlling a space ship, and you find yourself at the very epicenter of the battle in the solar system. You are forced to retreat into the unknown, distant Arcanum system through hyper-jumping.
Elite Dangerous
WHY THIS
Shares an atmospheric mood with Sirius.
Second-strongest match for Sirius fans by collaborative filtering across millions of Steam libraries. Shares Action and Adventure with Sirius.
Take control of your own starship and blaze your trail in an ever-changing galaxy. Master the arts of combat, mining and trade or venture out into the unknown across a 1:1 scale universe.
Space Travellers
WHY THIS
Third-strongest match for Sirius fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Sirius.
Space Travellers is a unique open-world sandbox space simulator set in the year 2343. Travel the galaxy, trade, explore unexplored worlds, fight, build bases and factories, forge alliances and experience new adventures!
Infinity: Battlescape
WHY THIS
Shares an immersive mood with Sirius.
Ranked #4 for Sirius fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Sirius.
Infinity: Battlescape is a multiplayer space combat sim supporting hundreds of players on a single server. Join one of the corporate factions and fight for domination of a seamless, true-to-scale procedural star system. Participate in massive space and planetary battles involving hundreds of ships.
Starbase
WHY THIS
Shares player driven economy and an immersive mood with Sirius.
Ranked #5 for Sirius fans by collaborative filtering across millions of Steam libraries. Shares Action and Simulation with Sirius.
Starbase is a hybrid voxel/vertex-based space MMO with a fully destructible and infinitely expanding universe, with a focus on building and designing spaceships and stations, exploration, resource gathering, crafting, trading, and combat.
SpaceCraft
WHY THIS
Ranked #6 for Sirius fans by collaborative filtering across millions of Steam libraries. Shares Indie and Adventure with Sirius.
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.
X3: Terran Conflict
WHY THIS
Shares an immersive mood with Sirius.
Ranked #7 for Sirius fans by collaborative filtering across millions of Steam libraries. Shares Action and Simulation with Sirius.
It is the year 2938. The long wished-for encounter of the X Universe and the Earth holds both joy and sorrow for the people. Despite flourishing trade, the clash of the diverse races, cultures and life forms creates new tensions, mistrust and open conflict that need to be overcome!
Starship EVO
WHY THIS
Shares an immersive mood with Sirius.
Ranked #8 for Sirius fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Sirius.
Mine and craft your way to orbit, build your own starship and explore a vast, dangerous galaxy alongside your crew. For players who love a meaningful survival progression, a unique and elegant building system, and epic space-opera scale.
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!
Control, I'm Not Coming Back
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie and Adventure with Sirius.
Control, I'm Not Coming Back is a short and emotional narrative game about a lost astronaut searching for a reason to keep going forward while facing the emptiness of space. Inspired by the Hopecore aesthetic, it’s a story about positivism, friendship and our human connection with Voyager 1.
The Riftbreaker: Prologue
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action and Indie with Sirius.
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 Adventure with Sirius.
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.
Unturned
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action and Indie with Sirius.
You're a survivor in the zombie infested ruins of society, and must work with your friends and forge alliances to remain among the living.
SCP: Secret Laboratory
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action and Indie with Sirius.
Deep within a secure underground facility, a sudden containment breach allows many of the secured anomalies to escape from their chambers. Assist the Foundation in re-securing the facility, help the Insurgency in their goal to capture it, or wreak havoc as an SCP in a frantic bid to escape.
Aimlabs
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action and Indie with Sirius.
Aimlabs is the aim trainer of choice for over 45 Million players, from beginners to esports pros. Our unique aim analysis optimizes your gameplay, targets your weaknesses & builds key skills for any FPS game! Time to warm up with our unlimited scenarios & rank up in-game!
Narrow it down
Head-to-head comparisons
Frequently asked about Sirius
- What games are most similar to Sirius?
- Based on Steam play patterns and shared genres/tags, the games most often recommended alongside Sirius are SPACERIFT: Arcanum System, Elite Dangerous, Space Travellers.
- Who developed Sirius?
- Sirius was developed by Digital Dawn Studios and published by DualityBeyond 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 Sirius.
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