| Name | Developer | ESRB Rating | Genre | Platforms | Release Date | Monthly Fee |
|---|---|---|---|---|---|---|
| 2Moons | GameHi | NR | Fantasy | Windows | 2008 | Free-to-Play |
| 9Dragons | Indy21 | NR | Fantasy | Windows | May 9, 2007 | Free-to-Play |
| A Tale in the Desert | eGenesis | NR | Fantasy |
Windows Mac |
February 2003 | P2P |
| Age of Armor | Snail Game | NR | Science Fiction | Windows | 2008 | F2P, Item Mall |
| Age of Conan: Unchained | Funcom | M | Fantasy | Windows | May 20, 2008 | F2P/P2P Hybrid |
| Aion | NCsoft | T | Fantasy | Windows | September 22, 2009 | P2P |
| Anarchy Online | Funcom | T | Science Fiction | Windows | 2001 | Mixed F2P and P2P |
| ArchLord | NHN Corporation | T | Fantasy | Windows | September 28, 2006 | F2P, Item Mall |
| Asheron's Call | Turbine | T | Fantasy | Windows | 1999 | P2P |
| Atriarch | World Fusion | NR | Windows | N/A | ||
| Auto Assault | NetDevil | T | Science Fiction | Windows | April 11, 2006 | |
| Bang! Howdy | Three Rings Design | NR | Fantasy |
Windows Mac |
2005 | F2P, Item Mall |
| Bots | NHN Corporation | NR | Science Fiction | Windows | November 23, 2006 | F2P with in-game ads and item mall |
| City of Heroes | NCsoft | T | Comics |
Windows Mac |
April 28, 2004 | Freemium |
| City of Villains | NCsoft | T | Comics | Windows | October 31, 2005 | P2P |