Cantr IIThe only other browsergame I play besides BM. It's hard, frustrating and very slow, but also very rewarding. a short discription:
Cantr II is a persistent browser-based role-playing game (PBBRPG), in which a large number of players play an even larger number of characters who all together form different societies all over our virtual world. Societies exist in different languages, whereby all language groups play in the same virtual world.
And also a fun part is the fact that you are not allowed to talk about stuff that happens in game outside the game for a certain amount of time.