Monkey King Online is an upcoming free-to-play browser-based MMORPG by R2Games. It is currently in beta-testing. The game is heavily inspired by the Chinese "Journey to the West" novel. It will feature four playable heroes, which include the famous Monkey King himself. The exact release date is unknown as of yet.
The game will feature PvP battles, competitive Arena matches, Guild vs Guild, lots of instanced team-based dungeons and more, but the questing and story-based part will be enjoyable even when playing solo.