If you don't want to download the game due to high size, you might want to give a try to Runescape its browser based and pretty fun once you get your hands on it...
If you still looking for a F2P game? If you are here is 1 i did really enjoy playing- https://raiderz.perfectworld.com/
Last edited by Qurtson; 09-09-2013 at 01:24 PM.
If you don't want to download the game due to high size, you might want to give a try to Runescape its browser based and pretty fun once you get your hands on it...