To help those of us who are new to the video gaming world, or aren't as adjusted as others, I decided to help compile a list of abbreviations to help them. If I missed any, which I probally will, just reply.
Game Types
FPS: First Person Shooter
RTS: Real Time Strategy
RPG:Role-Playing Game
MMORPG: Massively Multiplayer Online RPG
TPS: Third person shooter
TBS: Turn based strategy
TFPS: Tactical First Person Shooter.
WW2: World War 2
Systems
PS 1/2/3: Playstion 1/2/3
PSP: Playstation Portable
GC: Gamecube
NES: Nintendo Entertanment System
SNES: Super Nintendo Entertanment System
GB: Game Boy
GBC: Game Boy Color
GBA/SP: Game Boy Advance/SP
DS: Nintendo DS
Rev(o): Nintendo Revoulution
DC: Dreamcast
Games
GTA: Grand Theft Auto
KOTOR/2: Knights of then Old Republic/2
UT: Unreal Tournament
MoH: Medal of Honour
PGR/2: Project Gothom Racing/2
DoW: Dawn of War
WoW: World of Warcraft
NwN: Neverwinter Nights
AoE: Age of Empires
R:TW: Rome: Total War
MK: Mortal Kombat
DoA: Dead or Alive
C&C:Command and Conquer
RA:Red Alert
RA2:Red Alert 2
Gen:Generals
ZoE/2: Zone of Enders/2
FF (1-XII): Final Fantasy (1-12)
AA: Americas Army
KZ: Killzone
GT(1-4): Gran Turismo
CC: Chronocross
DDR: Dance Dance Revolution
SL: Starlancer
FL: Freelancer
PSO: Phantasy Star Online
TH(1,4): Tony Hawk (1-4)
THU(1/2): Tony Hawk's Underground
RE/Resi: Resident Evil
Zelda:
(TLoZ) Zelda I = The Legend of Zelda
(TAoL, TAOL) Zelda II = The Adventure of Link
ALTTP, ALttP = A Link to the Past (Zelda III)
LA = Link's Awakening
OOT, OoT = Ocarina of Time
MM = Majora's Mask
OOA, OoA = Oracle of Ages
OOS, OoS = Oracle of Seasons
WW = The Windwaker
TMP = The Minish Cap
(FS) = Four Swords (not normally abbreviated)
TP = Twilight Princess
Civ 1-3: Civilization 1-3
CoD: Call of Duty
JK: Jedi Knight
Academy: Jedi Academy
Outcast: Jedi Outcast
DF: Dark Forces
DF2: Dark Forces 2
PK: Painkiller
UT2003/2004: Unreal Tournament 2003 or 2004
SoF1/2: Solider of Fortune 1 or 2
BG: Baldur's Gate
IWD: Ice Wind Dale
MOH: Medal of Hono(u)r
PT: Planescape: Torment
HL - Half-Life
CS - Counter-Strike
BF1942 - Battlefield 1942
BFV - Battlefield Vietnam
BF2 - Battlefield 2
HOMM - Heroes of Might and Magic
D2 - Diablo 2
WC - Warcraft
SC - Starcraft
These are all I can think of right now. I'll add some more later. I'm having a mentsl block right now so I'll probally add some more later.