Top browser based games - Sci-Fi List 4

Exclave Online is a free persistent online MMO where you battle for territory across a vast galaxy, gathering resources and creating new technology and space ships in your laboratory to destroy your e...

In Planet War, players build massive ships to navigate the stars and > explore the Milky Way to learn of the ancient alien civilizations. > Players can explore alien technology and build allianc...

PolisForge is the most advanced free nation building game available today. Other browser-based nation simulations stop at spreadsheets and basic stat management. PolisForge delivers the gameplay depth...

Battle for Serios is an online strategy space game where you take up the role of a Galactic Emperor! Fight for Serios against thousands of players from around the world! This game is like no other......

NULLSPACE is a free-to-play, community driven and open-source browser MMO where you build a space empire, forge alliances, and wage large-scale interstellar wars in a persistent online universe....

Free space browser game with no war and fight. Discover the power of the universe in peace and quite.