map layout


Nestled within the confines of a grand medieval castle, Cobblestone offers a high-contrast tactical experience. The map features stone battlements, wooden ramparts, and lush courtyards. Players will find multiple levels of verticality and a variety of sightlines that range from narrow choke points to open areas ideal for sniping.

Bombsite A: Dominated by a regal courtyard and elevated battlements, providing excellent long-range sightlines but also offering nooks and crannies for close encounters.

Bombsite B: A complex area filled with wooden structures and various stone barricades. It's a labyrinthine environment where strategy and utility play can make or break the round.

Active Duty
Play Rate
T Win %
CT Win %
Dust II

























Update History

January 23, 2014

  • Added collision to top of trees
  • Added more accurate model collision
  • Removed particle effects that could be mistaken for grenades
  • Blocked a sightline in battlements near A
  • Blocked a hiding hole in underpass near A
  • Removed light models near statue at B that could be mistaken for player heads
  • Removed a portapotty at back of B
  • Raised height of center fence near B
  • Fixed various minor bugs

May 28, 2014

  • Blocked long sightline from back of Bombsite B
  • No longer possible to plant on top of hut at bombsite A
  • Made statue base at bombsite B taller, so players can't peek over
  • Made hut on bombsite B catwalk wider
  • Moved all T spawns to upper level
  • Decreased fog
  • Removed small tree near platform in mid
  • Pushed down some vegetation that players could hide in
  • Disabled collision on small rocks
  • Blocked visibility through cart in mid
  • Revised cover in Bombsite B courtyard

July 1, 2014

  • Added to the Active Duty map group

July 16, 2014

  • Removed OP flower pot at back of B.
  • Added a lip at the top of main B entrance to provide more cover to T team.
  • Slightly extended large planter by B entrance to close a thin sight line from back of B to side door.
  • Drop-down to alternative B entrance has been widened to allow a better view of the room below.
  • Drop-down room roof beams have been moved further away from the stairs.
  • Roof of alternative B entrance has been opened up for additional grenade throws.
  • Locations where the bomb could be dropped out of players’ reach have been clipped off.
  • Lighting changes at some locations to provide better visibility.
  • Shifted tapestry in CT sniper room up and made it lighter color to make players more visible against it.

August 1, 2014

  • Changed terrorist faction to Phoenix

September 2, 2014

  • Added T spawns to lower position, prioritized them over battlement spawns
  • Added ladder from bottom of T spawn to battlement near T sniper tower
  • Neutralized corner when moving through archhouse on B upper catwalk
  • Neutralized corner when entering B site through connector
  • Moved back CT spawns
  • Tightened entrance corridor to Long A, T side
  • Reduced depth of CT sniper room and made windows more open
  • Reconfigured B tunnels for faster T rotation time
  • Added path from T side of underpass into B tunnels
  • Reduced sightlines from back of B to entrances
  • Lowered railing at back of B to make characters on platform easier to spot
  • Cut out area behind the toilet in back of B
  • Minor lighting/texturing changes at A for better visibility
  • Rotated window overlooking connector

January 14, 2015

  • Fixed sticky spot under roof overhang at B
  • Fixed overview map not matching the geometry at Gallery
  • Raised ceiling and added trim in Gallery
  • Fixed sticky clip brush at A
  • Added clip brush to tapestry in CT sniper room so you can’t walk through it
  • Fixed floating electrical box in sewer stairwell
  • Fixed missing texture above T ramp
  • Removed handrail/clips and adjusted lighting in CT sniper hallway
  • Fixed wooden platform clipping into stone in T spawn
  • Made window bars in B tunnels & Gallery non-solid

February 4, 2015

  • Major changes to Cobblestone
  • Bombsite A:
    • Made bombsite A courtyard smaller
    • Removed spiral stairs at back of bombsite A
    • Pushed forward side-balcony at bombsite A, making it easier to check corners before jumping down
    • Added a static door to entrance to connector from bombsite A
    • Shortened battlement in long A, making it easier to check
    • Raised wall around bombsite A slightly, to give some cover when out in the open
    • Added additional cover in bombsite A
    • Removed balcony at CT side of long A
    • Added an additional chest-height wall at A ramp
    • Removed large boulders in A site
  • Bombsite B:
    • Made bombsite B courtyard smaller
    • Rerouted T main entrance to bombsite B
    • Made it easier to throw grenades into B site from a safe position as T
    • Added some cover on T platform in bombsite B
    • Moved bombsite B more to the middle of the courtyard
    • Flattened ground at bombsite B
    • Removed back of B area
    • Hut at back of B can now be shot through
    • Added a static door to entrance to bombsite B from connector
  • Other:
    • Removed stairs and overpass route from dropdown room
    • Widened upper dropdown passage
    • Added a ramp to dropdown to make it easier to peek into lower
    • Players can now jump up via flowerbed in connector to get into dropdown room
    • Removed walls in T tunnels
    • Removed CT sniper room
    • Added a static door to CT side of water room
    • Tweaked layout of water room slightly
    • Removed double window room near T spawn
    • Moved T spawns forward a bit
    • Added a direct ladder to T sniper tower
    • Various optimizations
    • Increased player visibility
    • Fixed a bug where very few chickens were spawned

February 12, 2015

  • Removed various boosts
  • Further optimizations
  • Tweaked layout of underpass room
  • Moved door from CT side to T side of underpass
  • Made cubby at entrance to Bombsite A smaller
  • Widened arch at end of long A
  • Set correct surface types on textures
  • Brightened haystacks at entrance to Long A
  • Updated collision on broken wall in bombsite A and B

February 19, 2015

  • Fixed some exploits and unintended boosts.
  • Further optimizations.

March 31, 2015

  • Made cubby near bottom of platform stairs in Bombsite B deeper
  • Smoothed out movement around B ramp and dropdown room
  • Fixed various spots where C4 could get stuck (Thanks Residents_evil!)
  • Fixed some surfaces playing the wrong footstep sounds

October 8, 2015

  • Fixed some areas where players could look through model backfaces

March 23, 2016

  • Updated loading screen image

February 14, 2017

  • Removed support beam in drop room which blocked line of sight to drop/door

March 15, 2017

  • Raised arch on CT side of long A

October 23, 2018

  • Removed connector between Long A and Underpass
  • Blocked long view angle from Long A CT side towards courtyard
  • Decreased height of doors in Underpass
  • Added window in Underpass
  • Removed slanted door leading into Underpass
  • Removed a large section of old Bombsite A courtyard
  • Moved up bombsite A zone towards ramp
  • Removed access to most of T spawn area
  • Moved up T spawn positions
  • Added climbable props in dropdown
  • Added cover in corridor leading to Bombsite B platform
  • Added spooky Halloween theme

March 19, 2019

  • Cobblestone has been removed from Competitive Matchmaking.
  • Cobblestone and Vertigo have been moved into Defusal Group Sigma



Bomb Defusal

Game Modes

Wingman / Casual / Deathmatch

Active Duty



Dec 18, 2013

Last Update

Apr 25, 2019


Phoenix Connexion






David Johnston (original author) / Valve