Carnage Blender 2 is an unique, free, non-graphical browser based MMORPG. It features complex strategy with simple interfaces using customizable "minions" based upon spells, skills, and weapons in a free for all battle arena, with a constantly changing environment, and robust community. The more time you spend exploring it, the more you will see this is the best non-graphical MORPG on the internet today.
It's free to play with the option to pay 10$ USD for ''Supportership''. It's a one time fee and is truely optional, giving no battle advantage whatsoever, but making the game a tad easier to play by helping organize your attacks.