Space

Realistic simulation of spaceflight in a full sized Solar System, with all the planets and their major moons. using real forces, distances, velocities and time. Chapter 1: The Apollo Days. Incredibly detailed Apollo Program missions starting with Apollo 8 lunar orbit missions.

Embark on an epic adventure to Mars in Horizon Journey, an open-world survival game that blends colonization, terraforming, and exploration in both single-player and multiplayer co-op modes. You're tasked with the monumental challenge of making Mars a new home for humanity.

Fight, loot, explore and craft in the living open world of Starpoint Gemini 3. Assemble your trusty ship and boost your RPG skills to face all challenges.

Starship Theory is a ship building survival game. Mine and trade to gather resources. Plan and construct new upgrades. Train and manage crew. Fight to survive.

Based on the great work of H.G. Wells, explore the English countryside and encounter iconic concepts such as Black Smoke, Red Weed and of course the almighty Fighting Machine and it's Heat Ray!

UPDATE 28 AVAILABLE - Interstellar Marines is an immersive tactical sci-fi First Person Simulator in the making, offering a unique blend of tactical gameplay, dynamic environments and non-scripted AI. Play Singleplayer or Co-op/PvP on servers around the world.

Explore space and build on other worlds in Star Rangers! Star Rangers is a space exploration and construction game that allows players to build habitats and spacecraft, acquire gear and explore the solar system.

Cosmonautica is a fresh take on space trading in a procedurally generated universe, paired with quirky humor for your intergalactic enjoyment.

Experience the thrill of standing in the boots of a future astronaut on Mars in the world of Starlite.Participate with your crewmate in a single-player 20 minute mini-adventure that soon turns into more than you bargained for on the Red Planet.

Ancient Space is a story driven single player real time strategy game where you take command of a fleet embarking on a scientific mission to chart undiscovered reaches of space called ‘The Black Zone’. Overcome overwhelming odds and fight for your life and the survival of your ship and its crew.

Take control of a fleet commander returned from exile, rise through the ranks of the United Space Federation forces and join an epic war across the stars.

Three thousand years in the future, mankind has carved a bloody path towards domination of the known universe. Self-proclaimed as a divine race and beyond reproach as a species, they view all alien races as inferior.