Top similar games like Relativity Wars - A Science Space RTS:

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.

In Kerbal Space Program, take charge of the space program for the alien race known as the Kerbals. You have access to an array of parts to assemble fully-functional spacecraft that flies (or doesn’t) based on realistic aerodynamic and orbital physics.

Become a pioneer of spaceflight. As an engineer in the Soviet Space Program you will be responsible for repairing, fixing and building the iconic spacecraft and rockets from the R-7 family.

A relaxing strategy game featuring unconventional gameplay. Your objectives include development, evolution, border expansion and protection of your hive.

Launch a rocket. Extend the Antenna. Set your internet service price and start making money. Oh and shoot down asteroids if they threaten your satellites.

Rebel Galaxy is a swashbuckling space adventure, with action-packed combat, exploration, discovery, trade, and “negotiation” with the outlandish denizens at the edge of the known universe.

Design massive ships, bristling with weapons, on a macro scale. Engage in fleet-vs-fleet battles, featuring many different tactics. Play alone or in Coop combat missions, or form two teams of players (each with own fleet) to fight in an arena.

In the 23rd century, Earth orbit is flooded with debris from constant warfare. Countries, megacorporations, and mercenaries are fighting for control. Take contracts, build your warfleets, and dominate the Earth-Luna system in this realism-focused strategy RPG!

A classic fantasy MMORPG powered by uMMORPG—discover dungeons, fight powerful creatures, forge rare equipment, and shape a living world alongside hundreds of players.

Create and destroy on a scale you’ve never imagined!

Become the Captain of an interstellar cruiser and journey across the galaxy to save the Republic. During your journey you will have to make important decisions, improve the weaponry of your ship and fight against numerous enemies.