Top similar games like SIRIUS-4:

In this multiplayer game you have to explore the Solar System in real scale. Control spaceships of the near future, explore planets, moons and asteroids, mine resources, fight for space domination and build the future of the universe.

A procedural co-op space sandbox where players can build their own space ships out of dynamically scalable blocks. Fight epic space battles, explore, mine, trade, wage wars and build your own empire to save your galaxy from being torn apart by an unknown enemy.

X4: FOUNDATIONS brings our most sophisticated universe SIMULATION ever. Fly every ship, EXPLORE space or manage an empire; TRADE, FIGHT, BUILD and THINK carefully, while you embark on an epic journey. Experience tons of improvements with the massive 7.00 Update!

Cattle Hyperdrive is a space trucking open world game that takes place across the solar system.

Experience large space ship battles. Uncover the secrets of the mysterious alien race. Upgrade your ship or even start a fleet. Survive

Captain your own space ship and roam the galaxy in 3D in this tactical space simulator with tons of RPG depth ! Space has never looked so inviting - but images can betray...It has been two years since the end of the second Gemini war, the situation in the wartorn system is further from resolution than ever.

Star Spectre is a single player space combat game with tons of exploration and numerous RPG elements. You will be free to explore and trade, as well as fight in a vast galaxy.

Stellar Wanderer DX is an old-school space combat sim set in a vast open-world universe. Follow the story or choose your favorite side missions as a mercenary fighter pilot. Explore the galaxy, upgrade your ship and weapons, trade resources and fight outlaws.

Create Your Own Universe is a survival, crafting, exploration, base building, third person, open world, go anywhere you see on screen space game.

Design and build an interstellar mining fleet to strip space of its invaluable minerals, and sell them for a tidy profit. But beware. Your greed will attract the alien. Use warships and defense platforms to protect your fleet at all costs - in real space, in real time.

FPS is a Sci-Fi cargo pilot sim, with an engaging emergent mission-driven storyline, with a real-time economy with free flight and trading, on an alien world to explore. All in customizable upgradeable, well-simulated VTOL craft with real weather, and flight dynamics.

Start with nothing... End with everything! All you have is a basic ship, barely fit for combat, with it you'll start your journey and empire. A open world space sandbox, inspired by and expanding the classics.

Spaceship building sandbox game. Build various spaceships from scratch and explore the cosmos. Fight different enemies and mine metals and materials to fix or expand your spaceship fleet.

LineVox is a casual cyberpunk game suitable for both one and several players, where you have to control the ship avoiding obstacles in order to win.

The assassination of the Blessed Mother has plunged the galaxy in darkness. Usurpers rule with absolute authority, and blood flows in rivers of red across the stars. Only the Protocol can restore Her light.

Starbase Gunship places you in the seat of a weapons officer on a state-of-the-art Gunship as you defend a remote outpost from an Alien invasion fleet. With access to laser cannons, missiles, miniguns and nuclear warheads, you are the last line of defense between humanity and the alien invaders.

Galactic Command Echo Squad SE is a high-end and very challenging space/planetary combat game. It offers a thrilling campaign, instant action combat sessions as well as a sandbox mode allowing you to explore the game's universe while battling hostile Insurgent forces among others.

Flight of Nova is a simulator based on newtonian mechanics in which you control spacecraft in the Noren star system. You fly multiple types of spacecraft doing transport and search missions in an environment with realistic aerodynamics and orbital physics.

Get ready to embark on a thrilling space adventure across the cosmos, where you'll explore new planets, engage in thrilling space battles, and shape the fate of humanity among the stars.

Subteralien Rescue is a physics based sidescroller where you pilot a lander module assigned to explore underground caverns and bases. Travel from planet to planet to encounter new levels with different puzzles and environments, rescue your fellow pilots and fight enemies.

Eternal Space is a city builder and space exploration/combat game. Explore the Eternal Space, and manage your city while you fight pirates, or maybe even become a pirate! Keep your citizens happy, and collect taxes from them each year for a little bonus!

Strap into the cockpit of your Arduxim fighter and take on enemy starships in this first-person tactical space shooter. Harks back to the classic Wing Commander games. Playable in VR or on monitor.

Silverwing is an action flight game where you build an array of powerful spaceships to combat enemies across space and a diverse array of planet landscapes. Play through a fully voiced 20+ mission campaign with multiple endings based on your mission choices.

You have been created by a mysterious monolith with a single goal: to retrieve five force crystals back to it as quickly as possible. Deal with the plights of space physics, evade the locals, and complete your mission as soon as possible.

Lead a powerful space battleship and bring victory to humanity in the midst of an endless war.

A must for any fan, Star Trek: Starfleet Academy is an action/flight simulator featuring filmed footage of the original Star Trek actors. Take your place among the best and brightest at Starfleet Academy!

X3: Reunion continues the epic space saga, blending deep space trading and intense real-time combat. Explore a vast universe, establish your empire, and shape the new frontier. With enhanced graphics and intricate economies, it's a journey of strategy, simulation, and interstellar intrigue.

A Space Nations Battlearena is a video-game that blends the survival, space simulator, and scavenging elements with last-man-standing gameplay.

ExoSky: Join a whimsical AI cat in a futuristic flight sim. Master stunts in a tech-inspired world with moddable aircraft and realistic physics. Explore beyond Earth in a blend of simulation and imagination. A pilot's dream of skill and creativity.

Space combat on a massive scale. Defend your allies, destroy the Xeris and claim victory for the Vallen! Your people need you, fly your ship in an intense battle in an asteroid field to secure the sector.

Fight, explore the stars, trade, and lead your fleet across the galaxySpace Commander: War and Trade is an ultimate single player space-sim featuring spectacular graphics, intuitive combat and deep mechanics.

Rogue Stargun is an action-packed space combat sim where you pilot 5 unique starfighters with interactive VR cockpits in a story-driven single player campaign consisting of over 24 unique missions covering both land and space.

Starship Tunnel is an arcade obstacle race in which you have to control a starship, navigate an endless tunnel filled with various obstacles, collect coins and set records.

Hover Ship is an arcade game in which you have to control a floating ship on an obstacle course, collect coins and set new records.

The game of survival and construction on the surface of the moon. Learn to build a base on the surface of the moon, maintain survival, explore and discover the secrets inside the moon, and solve abnormal problems.