So a long long time ago i used to play this space MMO called Star sonata, which was a slightly complex 2d action space mmo. I liked the game, but i couldnt pay for the subscription... But now the sequel is in open beta, It started in september, and it will probably end in november.

Basically you blowshit up, level up your dude, get new ships to control, create a clan, and fight for control of the universe.

http://starsonata2.com/