The most scientifically accurate space warfare simulator ever made. Now with Steam Workshop!

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.

The Long Journey Home combines an open world full of galaxies, planets and anomalies with quests and mechanics of a rogue-like RPG. One destination. Endless adventures. Where will this journey take you?

This "spaceship simulation roguelike-like" allows you to take your ship and crew on an adventure through a randomly generated galaxy filled with glory and bitter defeat.

A stolen, enigmatic machine is your only way out. It's likely to kill you, but so will the hostile planet you're escaping. Pull levers, hack devices, and puzzle out how to pilot the Nauticrawl to freedom in this unusual atmospheric adventure... or die trying.

UFO: Aftershock is a combination of tactical squad combat and global strategy that enhances and expands upon its prequel, UFO: Aftermath.

Build a galactic transportation empire and supply humanity with everything it needs to colonize the stars. In this sci-fi logistics simulator, grow your company from a local transport agency into an interstellar logistics behemoth! Singleplayer, vs AI, and online multiplayer.

Gods Will Be Watching is a minimalistic “point and click thriller” centered on despair, commitment, and sacrifice as players face intriguing puzzles and tough decisions that will affect their entire crew’s wellbeing.

W!LiB! Prologue allows you to try and live one day of Will's life in trying to save people on the legendary Suicide Bridge. Would you be able to find the right words? How many souls could you save in one day? And how would you feel if you're not good enough?..

Design, build and control your own space station. Mission command and control is in your hands and only careful planning and vigilant supervision will keep your crew and space station safe.

Space Engineers 2 is a playable Early Access Alpha sandbox focused on engineering, exploration, and colonization in a fully destructible universe. Design and build ships, stations, and planetary bases while uncovering the story of Miro and Ivan Sokol. Help shape the future of the Almagest system.

Strategy co-op online multiplayer game about living on a spaceship with your roommates. You'll need to generate resources, take care of a deadly alien infestation, upgrade your appliances and build your sustainable space home. Living together is never easy, especially when you are in outer space!