Game Definitions
MUD - Multi-User Dungeon. These have been around for a long time and are older than RPGs. It can be thought of as a non-graphic oriented MMORPG, and consists of multiple players, sometimes hundreds, playing over an internet connection in RPG form. These are often text-based and consist of a character creation and assigning a certain class similar to MMORPGs. The makers of most MMORPGs played these through their childhood life to get the ideas they now have for games like Everquest.

RTS - Real Time Strategy. Games that are often turn based (but don't have to be) and derive their game experience from upgrading units and buildings to become more powerful as time moves on. Traditional RTS games include Age of Empires, Civilization, and Starcraft. Some new RTS games such as Empire Earth have recently been released.

RPG - Role Playing Game, debatedly the oldest genre of PC/Console games. Role Playing Games were originally begun with Dungeons & Dragons and have upgraded into the Final Fantasy series and the majority of computer gaming. In role playing games you often take control of another character, essentially becoming that character, or a party of characters, and set out on a quest or follow a plot through an ancient or furturistic land. Role Playing Games often have the most intensive plots and story lines of any other the other genre.

MMORPG - Massively Multiplayer Online Role Playing Game. First begun with Ultima Online the MMORPG genre has upgraded into spectacular and addicting PC Games such as Everquest and Dark Age of Camelot MMORPG's have taken hold as the most played genre and fit in with the definition of Role Playing Games. An MMORPG is set in becoming a single character that quests through a vast world with many others on an internet connection who have joined the game and are playing like you. MMORPGs often have experience tables and leveling systems, as you progress in time your character gains new items and powers specific to what he or she was chosen to be at the original creation, or class. I'm playing one as I write this description.

FPS - First Person Shooter. Some of the oldest PC Games are First Person Shooters. Taking the role of a character with a variety of advanced weaponary, you travel through levels and literally blow the bejezus out of everything that moves. Some of the oldest FPS are the Doom series, and now we enjoy games such as Tribes I and II, Unreal Tournament, The Quake Series, and Einhander. First Person Shooters have come a long way, and are now played online, where multiple people fight against each other for points or control of sectors.

MMOFPS - Massively Multiplayer Online First Person Shooter. The newest in the genre, these games are fairly non-existent as of yet. Essentially, these games offer hundreds of people to play on single worlds, such as Everquest but in the form of an FPS. Expect these to be a hit with Planetside on its way to retail stores shortly. MMOFPS will have my vote for gaming superiority if done correctly.