Land of Destiny, LOD is a massive multiplayer online browser game which is free to play! You control your own village and together with your friends you can take over whole areas.
LoD is not just a browser game with only RTS aspects but you can also play as a hero and fight in the arena or do quests. Thats makes LoD both a role playing game (MMORPG) and a real time strategy (RTS) game which you can play for free online! You only need an internet connection together with your favorite browser to get started!
Official site: http://www.landofdestiny.com/