RPG Forum Acronyms & Abbreviations

Gamers love acronyms and one encounters a multitude of acronyms and abbreviations while reading though gaming forums and their meanings aren't always entirely clear and even Google doesn't always provide ready answers. On this page I'll be collecting as many of these terms as I can. The fine folks at the RPG Pub have been exceedingly helpful with suggestions for inclusions.

0-9

1PG
One Page System
40K
Warhammer 40,000

A-C

AC
Armor Class, Air Conditioning, Alternating Current, Alien: Covenant, take your pick.
AD&D
Advanced Dungeons & Dragons
AFAIK
As Far As I Know
AFF
Advanced Fighting Fantasy
AFMBE
All Flesh Must Be Eaten
AiME
Adventures in Middle-Earth, a setting for the fifth edition of Dungeons and Dragons based on Tolkien's Lord of the Rings. It is published by Cubicle 7.
AS&SH
Astonishing Swordsmen & Sorcerers of Hyperborea
AW
Apocalypse World
B&B
Bunnies and Burrows
BAB
Base Attack Bonus
This is the chief attack modifier used in Third Edition D&D and the various D20 System games that derived from it.
BBB
Big Blue Book a.k.a. Champions 4th edition
BBF
BareBones Fantasy
BECMI
Refers to the set of D&D box sets beginning with Basic and continuing through Expert, Companion, Master, & Immortal
BGG
Boardgamegeek
I think this is an online forum.
BESM
Big Eyes, Small Mouth; an RPG published by Guardians of Order
BGB
Big Gold Book for BRP ISBN-13: 978-1568823478
BOH
Bundle of Holding
BoL
Barbarians of Lemuria
BRP
Basic Roleplaying, the system behind most Chaosium RPGs such as Runequest, Pendragon, & Call of Cthulhu
BTW
By the way
BtW
Beyond the Wall (and Other Adventures)
B/X D&D or BX D&D
This is a reference to the 1981 edition of D&D written by Tom Moldvay
C&C
Castles & Crusades
C&S
Chivalry and Sorcery
C&T
Crypts & Things
C&W
Cakebread & Walton
CG
Colonial Gothic
Chargen
Character Generation
CoC
Call of Cthulhu
ConX
Conspiracy X
CYOA
Choose Your Own Adventure

D-H

D&D
Dungeons & Dragons
DCC
Dungeon Crawl Classics an RPG published by Goodman Games
DCH
DC Heroes roleplaying game by Mayfair
You will also see this referred to as MEGS
DIY
Do-It-Yourself
DP9
Dream Pod 9
DPR
Damage Per Round
DPS
Damage Per Second
DTRPG
DriveThruRPG
DW
Doctor Who
DW
Dungeon World
F2F
Face to Face
FAQ
Frequently Asked Questions
FASERIP
TSR's Marvel Superheroes RPG. The acronym is formed from the first letter of the seven attributes used in the game
FF
Fighting Fantasy
FFG
Fantasy Flight Games
GM
Game Master
GNS
Gamist, Narrativist, Simulationist. This is a reference to GNS theory.
GURPS
Generic Universal Role Playing System
An RPG published by Steve Jackson Games
HEX
Hollow Earth Expedition
HP
Hit Points
HQ
HeroQuest

I-N

IANAL
I am not a lawyer
ICE
Iron Crown Enterprises
IDHMBIFOM
I Don't Have My Book In Front Of Me
IIRC
If I Recall Correctly
IMHO
In my humble opinion
IMNSHO
In my not so humble opinion
IP
Intellectual Property
On gaming forums this often comes up in relation to the OGL. Sometimes incorrectly used interchangeably with "Product Identity"
ISTM
It seems to me
ITYM
I Think You Mean
LARP
Live Action Role Playing
LBB
Little Black Books referring to the original Traveller books
LBB
Little Brown Books referring to the original edition of D&D from the early 70s
LJ
Live Journal
LL
Labyrinth Lord
LMAO
Laughing My Ass Off
LOL
Lauging Out Loud
LotFP
Lamentations of the Flame Princess
LOTR
Lord Of The Rings
LRP
Live Roleplaying
LTTP
Late To The Party
LWAG
Lone Wolf Adventure Game
M&M
Mazes and Minotaurs
M&M
Mutants & Masterminds
MEGS
Mayfair Exponential Game System
See DCH above.
MERP
Middle Earth Role Playing
MST3K
Mystery Science Theater 3000
MYZ/MY0
Mutant: Year Zero
NPC
Non-Player Character
nWoD
New World of Darkness

O-R

OD&D
Original Dungeons & Dragons
Refers to the original edition of the game published in 1974.
OGC
Open Game Content
Material released under the OGL
OGL
Open Game License
OQ
OpenQuest
OSR
Old School Revival or Old School Renaissance
PBEM
Play By E-Mail
PbF
Play by Forum
PbP
Play by Post
PbtA
Powered by the Apocalypse; the system developed for Apocalypse World
PC
Player Character
PvP
Player Vs Player
PWYW
Pay What You Want
RAI
Rules As Intended
RAW
Rules As Written
RC
Dungeons & Dragons Rules Cyclopedia
A compilation and revision of the BECM portion of the BECMI rules.
RIP
Rules In Play
RNR
Rulings Not Rules
ROFL
Rolling On Floor, Laughing
RoH
River of Heaven
RoR
Raiders of R'lyeh
RPG
Role Playing Game
RPGG
RPGGeek
I think this is an online forum.
RQ
Runequest

S-Z

SBVD
Small but Vicious Dog
SJG
Steve Jackson Games
SotDL
Shadow of the Demon Lord
S&W
Swords & Wizardry
SW
Savage Worlds
SW
Star Wars
TBH
to be honest
TBP
The Big Purple aka rpg.net
TFOS
Teenagers from Outer Space
A comedy RPG published by R. Talsorian Games
TGD
The Gaming Den
I think this is an online forum.
THAC0
To Hit Armor Class 0; used in certain versions of D&D to determine chance to hit on attack roles. Primarily found in AD&D Second Edition.
TLA
Three Letter Acronym
Frequently seen in the plural form as TLAs
TL;DR
Too Long; Didn't Read
TOR
The One Ring, an RPG published by Cubicle 7
TotM
Theater of the Mind
TPK
Total Party Kill
TSoY
The Shadow of Yesterday
An RPG by Clinton R. Nixon
T&T
Tunnels and Trolls
TTRPG
Table Top Roleplaying Game
Used to distinguish pen and paper games from computer roleplaying games.
TWERPS
The Worlds Easiest Role Playing System
This was a game published by Reindeer Games in 1987 and distributed by Gamescience. It is notable for having precisely one stat.
UA
Unearthed Arcana
UA
Unknown Armies
V&V
Villains and Vigilantes
VtM
Vampire: The Masquerade
VTT
Virtual Table Top
WEG
West End Games
WEG SW
West End Games' Star Wars
May also be rendered as WEGSW
WFRP
Warhammer Fantasy Role-Playing
WLC
World's Largest City
WoD
World of Darkness
WtA
Werewolf: the Apocalypse
WTF
What the... (I leave it as an exercise for the reader to figure out what the F stands for.)
Used as an expression of shocked puzzlement.
WTH
See WTF
YMMV
Your Mileage May Vary
XP
Experience Points