From Valve Developer Community

Common traditional naming conventions for maps for some Half-Life and Source games use a small prefix (often two or three letters) followed by an underscore at the beginning of the map name. For example "de_dust", where "de_" is the prefix and "dust" is the map name. In addition, some custom maps can be marked with unofficial prefixes, either to denote its nature or to brand it.

To do: Add descriptions and prefix names for those who do not have any.

Official games

Prefix Map Type Description Official (general) cs Hostage Rescue de Bomb Defusal & Arsenal: Demolition Official (Counter-Strike, Counter-Strike: Condition Zero and Counter-Strike: Source) as Assasination Counter-Strike and VIP Mod only es Terrorist Escape Now defunct, originally official tr Training Maps Only official appearance in Counter-Strike 1.5 retail. Official (Counter-Strike: Global Offensive) ar Arsenal: Arms Race dz Danger Zone gd Guardian Scenario coop Co-op Strike Scenario Unofficial aim Aim Arena Has teams that are restricted to one class of weapon and have no objectives except to eliminate the opposing team. Emphasis is placed on player's aim. awp AWP Arena Restricts players to AWPs only bhop Bunny Hop Maps cp Control Points dm Deathmatch Arena Used by deathmatch mods for CS and CS:S. These maps are usually small and simple like "fy" maps but adapted in order to have multiple spawn points. dr Dead Run Race mod (unofficial gamemode) fy Frag Yard / Fight Yard Map with an assortment of weapons spawning on the ground versus player inventory. fun Fun Map Map with some strange objectives, contraptions or other mysterious things. mg Same as Fun Maps Mostly obstacle courses and games with unbalanced teams (i.e. attack and defend with more attackers than defenders). gg Gun Game (Original Arms Race) The only objective on this map is to kill the other team. You can level up to get better guns. he Heavy Explosive Grenade Arena Restricts players to Heavy Explosive grenades. nade hg Hunger Games Usually big maps with weapons scattered around the arena. Last man standing wins the round. ka Knife Arena Restricts players to knives only. kz Kreedz Climbing pa Prepared Assault jb Jailbreak surf Surf Maps Surf Maps (unofficial gamemode). texture Secondary prefix Denotes a map that only uses dev textures. ze Zombie Escape Zombie mod escape maps (unofficial gamemode) zm Zombie Mod Zombie mod barricade maps (unofficial gamemode)

Note: Condition Zero uses enhanced versions of the original Counter-Strike maps denoted with a "_cz" suffix.

Prefix Map Type Description dod Default Prefix para Para Maptype Last seen in Day of Defeat beta 3.1

Prefix Map Type Description asi Default Prefix jac# ? Second prefix assigned to the above, used in missions, where the octothorpe define a number, usage currently unknown.

Prefix Map Type Description dmc Default Prefix This is the default prefix for all maps in Deathmatch Classic.

Prefix Map Type Description c0 Chapter 0 Train Ride c1 Chapter 1 Black Mesa Sectors c2 Chapter 2 Black Mesa Trainride c3 Chapter 3 Black Mesa Outside c4 Chapter 4 Xen c5 Chapter 5 Ending t0 Training Training Maps hldemo Demo Maps Originally found in Half-Life: Uplink

Prefix Map Type Description ba Default Prefix This is the default prefix for all of the game's maps.

Prefix Map Type Description of Default Prefix op4cp Capture Point op4ctf Capture The Flag

Prefix Map Type Description ht Default Prefix dy Default Prefix Prefix for maps on the PC ported version.

Prefix Map Type Description d1 Day One Used in Half-Life 2's singleplayer campaign for Day One of the story, "Point Insertion" to "We don't go to Ravenholm". d2 Day Two Used in Half-Life 2's singleplayer campaign for Day Two of the story, "Highway 17" to "Entanglement". d3 Day Three Used in Half-Life 2's singleplayer campaign for Day Three of the story, "Entanglement (continued)" to "Dark Energy". ep1 Episode 1 Used in Half-Life 2: Episode 1's singleplayer campaign maps. ep2 Episode 2 Used in Half-Life 2: Episode 2's singleplayer campaign maps.

Prefix Map Type Description Official dm Deathmatch Default Prefix Unofficial js Coop

Prefix Map Type Description l4d Co-op Storyline based gameplay l4d_sv Survival l4d_vs Versus c#m# Campaign #, Mission #

Prefix Map Type Description testchmb Test Chambers Early levels (Test chambers 1-19) escape Facility Escape

Prefix Map Type Description sp_a1 Single Player Maps (Act 1) sp_a2 Single Player Maps (Act 2) sp_a3 Single Player Maps (Act 3) sp_a4 Single Player Maps (Act 4) mp_coop Coop Maps

Note: The player will spawn with a portal gun dependent on the map prefix - for example, starting with sp_a1 will start you with a single portal gun.

Prefix Map Type Description rc Default Prefix

Prefix Map Type Description Unofficial conc Concussion Using concussion grenades to do a climb/jump sort of map.

Prefix Map Type Description Official arena Arena Maps Added with the August 19, 2008 update. cp Control Point Original Shipping Map Type ctf Capture the Flag Original Shipping Map Type pl Payload Added with the April 29, 2008 update. tc Territorial Control Original Shipping Map Type plr Payload Race Added with the May 21, 2009 update. koth King of the Hill Added with the August 13, 2009 update. tr Training sd Special Delivery Added with the pyromania update mvm Mann vs Machine Added with the MVM update rd Robot Destruction pd Player Destruction pass PASS Time Used by maps utilising the PASS time gamemode. Unofficial ccp Cyclic Capture Points db Dodgeball dm Deathmatch duel dom Domination es Escort jump Rocket Jumping Jump maps (rocket or sticky jumping). Fun skill maps that have little or no competitive fighting, but rather are for players to practice using Soldier or Demoman classes, using their explosive weaponry to propel themselves to difficult heights, or through difficult obstacles. (Examples include: rj_rocketeer, JUMP_HOBO) rj kotf King of the Flag The intel must be held for an allotted amount of time for a successful capture. Only one flag. ktf melee - Melee only map sniper - Sniper only/preferred map toy - Players are small compared to the level scale rats rc Random Capturepoints Capture Point match where the points are randomly assigned vip Hunted map Hunted map, to be used with the Hunted mod core Core Destruction Must destroy the primary core to win the round. surf Surfing map Players strafe into angled surfaces, exploiting the game's physics to reach high speeds. Servers require an increased "sv_airaccelerate" value, ususally 100 or 150. Maps may be played as cp, ctf, dm, arena, or skill. (skill-surf simply being a challenging map that involves no deathmatch). ph Prophunt Red team is turned into various props, and given an amount of time to hide around the map. Blue team must find them all before the round ends. Usually when there is one prop left alive, they are given their weapons back and Blue team is coated with Jarate. To be used with the Prophunt (Hide and Seek) mod. vsh VS Saxton Hale VS Saxton Hale, used with the Versus Saxton Hale mod and the Freak Fortress mod. pf Parkour Fortress Used with the Slag Gaming Parkour Fortress mod. dr Deathrun Red team must survive a course of map-based traps activated by a player on Blue team. Used with either VSH or a similar mod. mge My Gaming Edge One-on-one deathmatch with the "My Gaming Edge" mod td Tower Defense achievement Achievement Idle fw Fort Wars ba Jail Break jail slender Slender Fortress sb Smash Fortress zf Zombie Fortress szf Super Zombie Fortress zom Zombie Mod tf2ware Team Fortress 2 Ware tfkart Team Fortress 2 Kart tf2kart kr trade Trade maps

Third-party mods

Prefix Map Type Description se1 Default Prefix Used by all of the singleplayer campaign maps in the game. arena Arena Maps Arena maps are where the player has to survive for as long as possible against infinite spawning enemies.

Prefix Map Type Description Official gm Default Prefix gmdm Garry's Mod Deathmatch mr Melon Racer ifn Infection Unreleased test gamemode ttt Trouble in Terrorist Town ph Prophunt Unofficial rp Roleplay sb Space Build gms Stranded zs Zombie Survival fw Fort Wars cinema Cinema

Prefix Map Type Description ch Chinatown Singleplayer Chinatown based maps hw Hollywood Singleplayer Hollywood based maps la Los Angeles Singleplayer Los Angeles based maps sm Santa Monica Singleplayer Santa Monica based maps sp ? Singleplayer ? based maps

Prefix Map Type Description bb Default Prefix

Prefix Map Type Description ddd Default Prefix

Prefix Map Type Description diprip Default Prefix

Prefix Map Type Description dys Default Prefix pb Phistball

Prefix Map Type Description emp Empires Fully featured empires map. Has FPS and RTS gameplay with commander role. con Conquest FPS only gameplay. Does not have a commander. Sometimes has vehicles. fun Fun Fun map generally not meant to be taken seriously.

Prefix Map Type Description es Default Prefix

Prefix Map Type Description ff Default Prefix

Prefix Map Type Description demo Gunman Chronicles demo cinematic Cutscene city ? mayan ? rust ? west ? rebar ?

Prefix Map Type Description ctf Capture the Flag dom Domination

Prefix Map Type Description hdn Hidden ovr Overrun

Prefix Map Type Description ins Default Prefix

Prefix Map Type Description ig Default Prefix

Prefix Map Type Description jb Default Prefix

Prefix Map Type Description bm Default prefix Used for all singleplayer missions dm Deathmatch A multiplayer PvP match.

Prefix Map Type Description ns Default Prefix co Combat

Prefix Map Type Description oc Default Prefix oc_vs PvP

Prefix Map Type Description 3mm 3-Month Mod

Prefix Map Type Description sf Default Prefix

Prefix Map Type Description ts Default Prefix

Prefix Map Type Description sc Default Prefix Older Sven Co-op maps tend not to have prefixes, but, to stop confusion with third-party single player levels and original Half-Life multiplayer add-ons, this prefix has come into use.

Prefix Map Type Description syn Default Prefix

Prefix Map Type Description zm Default Prefix

Prefix Map Type Description zps Survival zpo Objective Mode zph Hardcore zpa Arena

Unclassified prefixes

Prefix Map Type Description jp ? kz Climbing/jumping nrp ? proto Prototype map rwp ? sa Snipers Alley sdk SourceSDK example map test Test map perftest Performance Test map zoo Object Gallery

Thematic