Awesomeness Over 9000
A place that you will never want to leave. though the name is stupid, and as the creator i'll admit that, but it has many wonderous things to behold!
Manyland is a 2d sandbox browser MMO. In an open world, you can chat with people, build, draw, play multiplayer platformers, RPGs and adventures others made, join friendly PvP, and create worlds and games yourself!