OSR Acronyms
On online discussions around the OSR,
many acronyms are thrown around to save typing names for common concepts and products.
These aren't necessarily common acronyms outside OSR circles,
so here is a compiled list of acronyms you may see,
along with possible meanings and links to web pages with more information.
Inclusion in this list does not imply endorsement.
AAC : Ascending Armor Class (a rating of how difficult it is to be damaged, alternative method to AC)AC : Armor Class (a rating of how difficult it is to be damaged, alternative method to AAC)AD&D | ADND : Advanced Dungeons and Dragons AL : Alignment AS&SH : Astonishing Swordsmen & Sorcerers of Hyperborea ASE : Anomalous Subsurface Environment AV : Halls of Arden Vul B&W : Black and White (as in, not in colour)B/X : Basic / Expert BECMI : Basic, Expert, Companion, Master, Immortals BF : Basic Fantasy Role-Playing Game BtW : Beyond the Wall CX : Castle Xyntillan D&D : Dungeons and Dragons DCC : Dungeon Crawl Classics DCO : Deep Carbon Observatory (or the Remastered edition )DM : Dungeon Master (also known as Game Master, or Referee)DMG : Dungeon Master's Guide DND : Dungeons and Dragons DTRPG : DriveThruRPG DW : Dolmenwood | Dragon Warriors | Dungeon World EB : Electric Bastionland EF : Exalted Funeral FG&G : For Gold & Glory FKR : Free Kreigsspiel Revolution FLGS : Friendly Local Games Store (as in, your local games store)FR : Forgotten Realms G&G : Gold & Glory GG : Goodman Games | Gary GygaxGLOG : The Goblin Laws of Gaming GM : Game Master (also known as Dungeon Master, or Referee)GW : Gamma World HD : Hit Dice (a measure of how many hit points a creature may have)HP : Hit Point (an abstraction of how healthy a creature is; usually bad things happen at 0HP)HSI : Hot Springs Island HitO : Hole in the Oak ItO : Into the Odd KS : Kickstarter KotB : Keep on the Borderlands LL : Labyrinth Lord LotFP : Lamentations of the Flame Princess ML : Morale Rating (a rating of how likely a monster will be to fight)MM : Monster Manual MV : Movement Rate (a measurement of how far a creature can travel in a unit of time)NG : Necrotic Gnome NPC : Non-Player Character (a character controlled by the game master, rather than the players)OD&D | ODND : Original Dungeons and Dragons OGL : Open Gaming License OS&C : Old School & Cool OSE : Old School Essentials OSE:AF | OSEAF : Old School Essentials: Advanced Fantasy OSR : Old School Revival | Old School Renaissance OSRIC : Old School Reference and Index Compilation PC : Player Character (a character in a game controlled by a player, rather than by the game master)PF : Pathfinder PHB : Players Handbook PatW : Playing at the World PbP : Play by Post PbtA : Powered by the Apocalypse PoD : Print on Demand QB : Questing Beast RAC : Race as Class (this is where a ruleset does not allow a player to choose a race independent of class; a class is tied to a specific race)RAI : Rules as Intended (interpretation of rules taken in the context of the intentions of the writers)RAW : Rules as Written (interpretation of rules word for word as written)RC : Rules Cyclopedia RPG : Role Playing Game S&W : Swords & Wizardry SRD : System Reference Document SV : Saving Throw Value (a measure of how likely a creature will survive an event)THAC0 : To Hit Armor Class 0 (a method for determining if an attack hits)TM : Tegel Manor ToH : Tomb of Horrors VTT : Virtual Tabletop (software such as Roll20 , FoundryVTT , Owlbear Rodeo , or Tabletop Simulator )WD : Winter's Daughter | White Dwarf WotC : Wizards of the Coast XP : Experience Point
This compiled list released under the CC BY-SA 4.0 license.
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