Games like VoidExpanse on Steam
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The Matchless Kungfu
The Matchless Kungfu is an open world sandbox RPG game based on a WuXia background. You can play any martial arts role you imagine in this wild world. Travel through the great wilderness, or be the leader of the group. The most important thing is, build your own story and live the experience!
Out There: Ω Edition
Out There is an award-winning space exploration game blending roguelike, resource management and interactive fiction.
Rune Teller
Become a powerful Rune Teller traveling through the open world of the Runegea. Recruit great colleagues for a fun journey, craft through a variety of items, and solve the requests of the Runegea residents. At the end of a long journey, you will find the reason for your resurrection.
Project 5: Sightseer
Open world multiplayer sandbox/RPG game. Explore, gather, build, research, and fight to protect what's yours -- by yourself or together with your friends.
Space Crew: Legendary Edition
Time for your toughest mission yet! Recruit and train your crew to tackle the growing threat from alien and android armies as you defend Earth to become a Galactic Legend in Space Crew: Legendary Edition. All new content free to existing owners of Space Crew!
Freeman: Guerrilla Warfare
In the anarchic world of Freeman: Guerrilla Warfare, only the mightiest warlord rules. Start with a pistol and a few militias, you will set yourself on a wild and ambitious journey towards world domination. Enjoy the immersive combination of intense FPS and sandbox strategy.
Nexus - The Jupiter Incident
Ambitious megacorporations monopolize the conquest of space and the colonization of the solar system. At the very edge of the solar system, the companies make a discovery that will shift the technological advantage and upset the balance. And so a new conflict is born: "The Jupiter Incident."
Voxel Turf
Voxel Turf is a block based urban sandbox. Build cities, blow up buildings, complete missions or fight for territory. Build a real estate empire, or perhaps just drive around and blow stuff up. Its your choice!
STAR OCEAN™ - THE LAST HOPE -™ 4K & Full HD Remaster
Explore the galaxy on your quest, make allies and enemies among the alien races you encounter, and uncover a danger so great that it threatens all of creation.
Space Rogue
Take on the role of a spaceship captain. Explore new worlds, and engage in intense ship-to-ship battles. Develop unique battle tactics, upgrade your ship, and recruit crew members as you fight for peace or piracy.
Souls of Blades
Famous sword, spiritual realm after the death of the awakening. Where is the owner? How did Gorgeous architecture and The Mysterious Island become a ruin? What happened before the destruction?
Elite Dangerous
Take control of your own starship in a cutthroat galaxy. Elite Dangerous is the definitive massively multiplayer space epic.
Strike Suit Zero: Director's Cut
In the year 2299, an interstellar war rages on. In a bid to save Earth from destruction, you must take control of the Strike Suit – a revolutionary fighter craft with the ability to transform into a lethal suit of space armor.
Artemis Spaceship Bridge Simulator
Artemis is designed for anyone who watched Star Trek and dreamed of what it would be like to sit on the bridge of a star ship. Artemis simulates a spaceship bridge by networking several computers together. You cannot play Artemis single-player!
Wild West and Wizards
Wild West and Wizards is an open world exploration RPG set in a re-imagined new frontier. Pick a class and level up unlocking abilities and exploring a world filled with quests, loot, outlaws, bosses, spells, caves, towns, and other mysterious places.
Fantasy Versus
Fantasy Versus focuses on quick paced 4 vs.4 multiplayer battles. Find your own play style, team up and fight towards victory in Fantasy Versus!
Angels Fall First
From commanding the battle standing on the bridge of your flagship all the way down to tactical infantry firefights - AFF brings together all the combat you ever wanted in a rich science fiction setting. Boarding, pilotable capital ships, deep weapon customization and full AI support included!
Parkan 2
Parkan II is an original concept game that will allow you to feel as a pilot of a spacecraft lost somewhere in the universe. Become a pirate or mercenary, get money to buy the most powerful cruiser and show them all who is to be the new master of the galaxy. Unforgettable adventures in the Parkan II universe await you!
The Brew Barons
A tranquil world becomes ever more corrupt by the day, spoiled by a pirate organization that forcefully impose their brewing monopoly over the lands. It's up to you to explore, forage, craft, sell and deliver your brews to overthrow the corrupt pirate organization and restore peace.
Star Trek Timelines
Explore the Final Frontier in the ultimate sci-fi strategy RPG, Star Trek Timelines! Join Starfleet and overcome challenges as you boldly go where no game has gone before – across the entire history of Star Trek.
Pixel Privateers
Pixel Privateers is a Squad Based Tactical RPG “Loot ‘Em Up” that will send your team of mercenaries through a mysterious wormhole on a quest to gather technology for your employer. An entire galaxy awaits - full of worlds to explore, factions to encounter, and epic gear to collect!
Perpetuum
Perpetuum is a persistent, sandbox, single server, massively multiplayer sci-fi rpg (MMORPG). Control huge robots and mechs to gain access to an alien planet's resources and knowledge, amass huge wealth, or even claim part of the world for yourself using terraforming and complex infrastructure.
X: Beyond the Frontier
The Human Race had advanced to the point where we could travel among the stars, we developed giant automated machines to help us colonise other worlds, but there was a fault in their programming and they turned and attacked. Forcing us to lay a trap to protect Earth and exiling the Human race to stay on Earth once again.