CARPG = Computer-Assisted Role-playing Game.
CRPG = Computer Role-playing Game.
CRPGs = Computer Role-playing Games.
D&D = Dungeons and Dragons.
FFRP - Free Form Role Playing.
GM = GameMaster.
GURPS = Generic Universal Role-playing System.
IC = In Character.
IRC = Internet Relay Chat.
LARP = Live Action Role-play.
OOC = Out of Character.
PBMG = Play-by-mail Game.
PnPRPG = Pen and Paper (or Pencil and Paper) Role-playing Game.
PPRPG = Pen and Paper (or Pencil and Paper) Role-playing Game.
NPC = Non Player Character.
MMORPG = Massively Multiplayer Online Role-playing Game.
MPOG = Multiplayer Online Game.
RP = Role-play.
RPG = Role-playing Game.
RPGs = Role-playing Games.
RRP = Restricted Role-play.
SPRPG = Single Player Role-playing Game.
TRPG = Traditional Role-playing Game.
TTRPG = Tabletop Role-playing Game.