If you're looking for a free-to-play browser-based MMORTS title, there are plenty of them out there. The latest such comes courtesy of Aeria Games
. The company is launching Star Supremacy
, a sci-fi RTS title featuring 2-D graphics in both space and planetary environments.
Players can choose from three different factions (the Altairians, the Seekers, and the UEO) and then set about gathering resources and building fleets before heading into combat. Aeria says that its title boasts quite a bit of gameplay choice, many of which "will directly affect the outcome of combat and ensure that warfare in Star Supremacy is a dynamic and highly strategic affair."
[Source: Aeria Games press release]