Ok to start with games i've played are :3

Maplestory
Trickster
Nostale( waiting for the game to work again)
Gunz
Rakion
Runescape
Tibia
Martial heroes online
Silkroad online
Legend of ares online
Knight online
Darkness and light online
Dragon Gem
Gunbound
Pirate King Online
Supa Supa
Bomb N Dash
Goonzu
MU online
Kal Online
Travia
Gunster
Monatoe Espirit

Anyway the Game has to be F2P and in english lol O_o a Mmorpg would be great but something different is okay to :)

RYL2(http://wwwryl2.com.my/) or Voyage Century(http://www.voyagecenturyonline.com/),both are quite good,in english,and free.

Try Rose Online -http://roseonlinegame.com
You have to pay but you get 7 days or 35 hours free.