Top similar games like Subspace Discovery:

Design unique spaceships and build the ultimate space mining fleet as you team up to battle for resources and glory in this massively multiplayer action strategy set in an alien wasteland.

In Star Trek Online, the Star Trek universe appears for the first time on a truly massive scale. Players take the captain's chair as they command their own starship and crew. Explore strange new worlds, seek out new life and new civilizations, and boldly go where no one has gone before.

AQ2: Expanse is a massively multiplayer space strategy game. A single persistent universe with open PvP and PvE. Fight for control over the Aquila system's sectors in huge corporation wars, play with everyone, play in a group or play solo with plenty to explore.

Starship Empire is an intense PvP-filled space MMO where you not only lead your ship into epic battles, but manage the entire crew inside!

Stake your claim, command your fleets, and wage epic war in space.

Player bases are located on asteroids, which travel within the Oort Cloud. Once they’ve acquired the appropriate skills, players can control their asteroid’s movements. Mass-combat enthusiasts will love the Arena: here, players can battle it out against alien races or other Astro Lord players.

Get ready for a journey to the world of Anseion, an immersive 2D MMORPG. Choose your fraction: good or evil. Fight against players and monsters, explore the fascinating world, collect items and create your own. Make a unique character. Participate in events and fraction battles, increase your rank.

Mist Legacy gives you a new way to experience the thrills and adventures of an MMORPG. Handcrafted by a small team of passionate developers, the game features an easy to play top-down world, turn-based combat and a skill-based progression system. Try our game for free. We hope you like it!

Build and navigate your ship as it barrels through space. Machines, pipes, and wiring; all necessities to keep your ship running. Survive and explore.

A Sci-Fi role-playing adventure: explore, gather, build, and grow your fleet in a persistent open-sandbox galaxy

Starborne: Frontiers is a free-to-play tactical autobattler with hundreds of unique ships. Form your fleet, customize it with a variety of equipment, and use strategy to create the perfect battlefield formation. Take on bounties, engage in the PvP arena, and bring order to the Frontier.

Dual Universe is a first-person Sci-Fi MMO built and driven by players, in a single persistent universe. You can build almost anything out of voxels, trade in a free economy, lead industries, travel through space, explore planets, or wage war in a fully editable sandbox universe. Subscription-based.

Pixel Starships is an FTL-style online sci-fi strategy builder and management game with a competitive PVP tournament. Set in the retro galaxy, your role is to explore space, meet aliens, and develop your ship, crew and AI. The game contains deep strategic and 4x elements. PSS is community-driven.

Define your own destiny in this dynamic, open-world sandbox MMORPG. Explore vast fantasy worlds, fight monsters and other players in dynamic PvE and PvP battles, gather resources, set up a trade empire, grow your virtual home to a major city or conquer others. Chose your own way!

Immerse yourself in the WAKFU universe with this free to play MMORPG. Select your class, travel the world, meet adventurers to challenge powerful monsters in epic turn-based battles.Participate in the kingdom’s economy and politics and create your own legend!

The ultimate space sandbox. Participate in epic fleet battles, form alliances, strive to dominate entire galaxies and harness the universe’s resources for your industrious empire or the destruction of others. Customise your experience, the universe is yours!

Chainmonsters is a massive multiplayer online RPG where you catch, battle, trade, explore, and combine different types of monsters and abilities to create strong chain reactions! No game subscription required. Explore the vast lands of Ancora together with your friends on Steam, iOS and Android!

A unique space strategy game where thousands of players participate in one shared galaxy.

Wings of The Universe (WoTU) is a free-to-play 2D indie space action MMORPG top-down game developed by a single programmer. WoTU is designed to be co-op heavy, but even a lone wolf can survive with his skills and have fun.

Critically acclaimed and now Free to Play, WildStar is a fantastical sci-fi MMO where you can join your friends or undertake your own epic adventures on the fabled planet Nexus!

Build anything. Fight anyone. In space. Highly tactical competitive sci-fi combat/building multiplayer free-to-play game. Bit of MOBA, bit of sandbox. Try it out to see for yourself!

Wild Terra Online is a sandbox RPG, in a completely player-controlled medieval world. You will have to survive in a forest full of predators, build a shelter and improve your crafts skills, tame animals and fight for treasures. You can become anyone and do whatever you want!

The Last Starship is a space-based construction, industry & factory game, currently in Alpha (expect regular free updates). Design star ships and take on a variety of missions from mining and passenger rescue to combat whilst working on the greatest engineering project ever attempted by humankind!

EVE Online is a free-to-play community driven space MMO where players can choose their own path from countless different options. Experience space exploration, immense PvP and PvE battles, mining, industry and a thriving player economy in an ever-expanding sandbox.

Cubox is a 3D MMORPG with a procedurally generated open world. Build, fight, and discover!

Heartwood Online is a cross-platform free-to-play MMO. Explore a vast world filled with adventure where you choose your own path. Immerse yourself in crafting, trade, PvP & PvE battles, guilds, politics, and a thriving player economy.

Command your carrier ship and lead covert operations against a ruthless enemy in this immersive sci-fi tactical RPG. Send your fighters on missions, loot, upgrade your ships and train new officers and pilots.

Build up your empire and hold your defense against the waves of enemy attacks! Develop your own strategy. Compete in epic Clan Wars!

As you land on a planet engulfed by oceans, you must explore this treacherous water world and try to survive. Take on missions from the underworld or loot islands you encounter. How you survive will depend on how you play.

Conflict is a Rpvp game with a emphasis on social interaction

Adventure through a limitless procedural galaxy, as you play the role of a colonist in this epic colony simulator.

Andromeda is a hybrid between a space 4X and an MMO for Android and PC. Get dropped into an online universe sandbox with 2 galaxies full of planets to colonize. Build structures like Mines to generate resources to build ships and engage in fleet battles with NPCs and other players.

Superhero sci-fi MMORPG with magic. Create your unique avatar and show your heroic side. Select and custom-augment your powers as you rise through the ranks. Team up to defeat enemies, or try the hardest content solo, if you dare… Harvest. Craft. Trade. Gain fame, wealth, and power.

NEO 2045 is a futuristic action MMO game. Explore the NEOVERSE, quest, and level up with friends! Build your own world and face off in multiplayer eSports games. Adopt and train pets and drones!

Survival on Kepler is a race against time. Make the most of the remaining 168 hours or get turned into an unworldly being by the Sphere. Complete quests to help NPCs, explore the diverse landscape, survive wildlife and other players. Uncover Kepler’s mysteries and your mission’s true goal.