Games like Sirius on Steam
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EarthX
EarthX is a rocket company management game. Go from launching small rockets on Earth to eventually building a colony on Mars. Create your own Internet constellation, develop new technologies, supply the International Space Station and terraform Mars!
Lost Planet™: Extreme Condition
Driven to the brink of extinction on ice-covered wastelands, humankind fights to survive. Battle to survive against gargantuan alien Akrid and treacherous Snow Pirates on the vast and frozen landscape of EDN III.
Maximum Override
Maximum Override is a chaotic city destruction game where the machines come alive. Wreak havoc in a fully destructible randomly generated city with anything you can find.
ZooKeeper Simulator
In ZooKeeper Simulator, there are two teams: Zookeeper vs Animals. Zookeeper must maintain the park by carrying out missions while animals must prevent them utilizing violence and pure brutality.
Hold Your Own
A single player open world sandbox, crafting and survival FPS game set in a multi-island land where you'll fight to survive. Build your base, hunt and craft to defend yourself from aggressive wildlife, enemies or friends. Do you have what it takes to Hold Your Own?
Airport Madness 3D
This is the seventh version of Airport Madness, offering players a 3-dimensional air traffic control experience from a control tower perspective.
Hunting Simulator 2
With your hunting dog by your side, explore the Texan desert and forests of Colorado and Europe as you track down 33 animal species. Choose your gear from over 160 official weapons, accessories and clothing items (including Browning, Winchester and Bushnell).
Swords of Gurrah
Swords of Gurrah is a real time multiplayer sword fighting VR game. Fight with or against friends, with battles up to 12 players. Choose from over a huge variety of weapons and create a fighting style of your own!
Drug Dealer Simulator: Free Sample
Drug Dealer Simulator: Free Sample is an introduction to the dark alleys of the ghetto, where you can start to expand your own crime empire! Get in touch with your contact and take your first steps in drug dealing business! 8 levels of dope business deals and constant adrenaline!
Chained in the Backrooms
Chained in the Backrooms is a 1-4 player co-op, mission-based horror game. Trapped in a blurry subconscious and chained together, toy bears must solve puzzles, complete challenging missions, and survive against creatures trying to destroy them.
Toy Odyssey: The Lost and Found
Toy Odyssey is fundamentally an action-adventure platformer. The player spends the night exploring a randomly-generated house, defeating bosses in each of the unique rooms, and then going up against the final boss.
Liftoff®: Micro Drones
Explore the world of FPV like never before! In Liftoff®: Micro Drones any indoor area becomes an exciting aerial playground. Explore, customize and compete in this simulator dedicated to the micro drones class.
Ria's Hook
Ria's journey to the strange storm...
Project Zero Deaths
Project Zero Deaths is a hectic physics-based F2P online multiplayer platform shooter. Jump into frantic battles in dynamic maps, solo or with friends, to fight in varied wild game modes! Choose between different characters with unique skills and customize them and their weapons to your own playstyle!
LOCKDOWN Protocol
A first person social deduction game, combining real time action and communication, 3 to 8 players. While most players will do their best to complete objectives and ensure victory, a small portion of dissidents will try to stop them at all costs, without getting caught.
Moon Mystery
The Moon's haunted - and when an astronaut loses contact with Earth, the adventure begins in full. Fill up your oxygen, load up the guns, and set out on an interstellar FPS adventure across the stars, filled with puzzles, fights, exploration, and strange secrets of the universe.
SuperSmash: Physics Battle
SuperSmash is a physics base multiplayer fighting game.Character is fully driven by physics engine,and there are lots of different weapons and maps.It will provide you totally different battle experience.
Drunkn Bar Fight
Drunkn Bar Fight is a simple, immersive, silly, rowdy game. Now with 4 player Co-op! The only limits to the mayhem is your imagination and your moral decency.
PLANET ALPHA
PLANET ALPHA, a beautiful alien world filled with mystery and danger. Pursued by relentless enemies, you must harness the power of night and day as you struggle to survive.
Revenge of the Savage Planet
Revenge of the Savage Planet is an upbeat, satirical action adventure Sci-Fi. Jump, shoot and collect your way across vibrant alien worlds, uncovering new gear and upgrades, while discovering various hidden secrets.
Nefarious
Play as the villain in Nefarious! An action platformer where you globe hop between several kingdoms kidnapping princesses who alter gameplay in unique ways. Then thwart various heroes in reverse boss fights, recreated iconic battles where you control the boss.
War Tech Fighters
War Tech Fighters - the space action game that combines the spectacular action of Japanese Anime with Hollywood Blockbusters. Configure, upgrade and customize your War Tech and dive into battle to fight back the Zatronian forces and save your galaxy!
The Last Federation
From the creators of AI War: Fleet Command comes an all-new grand strategy title with turn-based tactical combat, set in a deep simulation of an entire solar system and its billions of inhabitants. You are the last of a murdered race, determined to unify or destroy the 8 others.