1. MapleStory
I will always love maplestory. I enjoy the game to a very large extent and play it often. It is on all computers in my house.

2. Atlantica Online
I have always loved turn-based combat.

3. Runescape
Although not the best, RUnescape is a classic, and everyone should play it to an extent.

4. PWI
Great game, and one of the first I ever got really really into.

5. FlyFF
Wonderful game, lots of content, classic, with a good style and okay graphics.

6. DDO
DDO is a really good game, with great graphics and a pretty good world. It is kind of a freemium though, which is a turn off.

7. NEO Steam
Great graphics, great concept, and great gameplay.

8. LOTRO
One of the best F2P's out there, and if it was nto a freemium, I may delve into it with all my spare time.

9. Jade Dynasty
Great game with an awesome Auto-Level feature lol.

10. Wonderking
Pretty similar to maplestory, although the combat is much less polished. A must try for every MMORPG fan.