This is a list of notable massively multiplayer online games (MMOGs), sorted by category. For massively multiplayer role-playing games, see list of MMORPGs.
Action
- Cartoon Network Universe: FusionFall
- DC Universe Online
- Freaky Creatures
- Infantry Online
- Monkey Quest
- Pirates of the Caribbean Online
- Starport: Galactic Empires
- SubSpace
- Toontown Online
Browser game
- Blackout Rugby
- Blood Wars
- Business Tycoon Online
- Castle of Heroes
- Club Penguin
- Command & Conquer: Tiberium Alliances
- Dark Orbit
- Empire & State
- Lord of Ultima
- Gods of Time
- Hattrick
- Ikariam
- Illyriad
- Little Space Heroes
- Maplestory
- Miniconomy
- Nadirim
- NEO Shifters
- Ogame
- Omerta
- Pardus
- Pirate Galaxy
- Planetarion
- Runes of Magic
- Sentou Gakuen
- SoccerProject
- Terra Militaris
- Travian
- Tribal Wars
- Twin Skies
- Urban dead
- Vinnex
- Battlestar Galactica Online
- Family Guy Online
- Free Realms
- RuneScape
- Tanki Online
Building Games
Exploration
- Uru Live
- World of Pirates
Flight simulation
FPS (First Person Shooter)
- Fallen Earth
- Firefall
- Global Agenda
- Huxley
- Neocron
- PlanetSide and PlanetSide 2
- World War II Online
Music (or Rhythm) Games
Puzzle
Role-playing game
Main article: Daftar/Tabel -- MMORPGs
Real-time strategy
See also: MMORTS
- Age of Empires Online
- Beyond Protocol
- Company of Heroes Online
- DarkSpace
- Dawn of Fantasy
- End of Nations
- Happy Farm
- Mankind
- Monopoly City Streets
- Saga
- Shattered Galaxy
- Society
- Stronghold Kingdoms
- War of Legends
Social games
Turn-based strategy
See also
- Chronology of MUDs
- Multiplayer video game
- MMORPG
- Browser based game
- Daftar/Tabel -- massively multiplayer online role-playing games
- Daftar/Tabel -- free multiplayer online games
- Daftar/Tabel -- free massively multiplayer online games
