Counter Strike Online Wiki

Room restrict limitpistolSKULL-1 is a Rare grade pistol in Counter-Strike Online


Empty slot This weapon has Part System installed.

SKULL-1 is a double-action revolver chambered with 7 rounds of .50 Anti-Zombie. It has two firing modes: semi-auto and full-auto fire. Semi-auto fire mode deals higher damage but has lower accuracy and lower rate of fire while the full-auto fire mode has higher rate of fire, higher accuracy but does lower damage.

SKULL-1 is accurate in any fire mode and very powerful against both zombies and humans as a secondary weapon, its performance can be maximized in middle to close range combat. It can be very useful at times if you have proper skills though it is a bit inaccurate in long range combat.


  • Very high damage to both zombies and humans
  • Very high accuracy for a high-caliber revolver
  • Has full-auto fire mode
  • Does not affect player's speed
  • Penetrates Kevlar and multiple objects (up to 4 objects in a row)
  • High stun to zombies
  • Medium knockback for light and normal types zombies
  • Fast reload time
  • Can slow down the movement of zombies in Zombie Scenario


  • Low magazine capacity
  • A bit Inaccurate at long range
  • Expensive price for a revolver

Release date[]

  • South Korea: 22 September 2011.
  • Taiwan/Hong Kong: 27 September 2011.
  • China & Japan: 28 September 2011.
  • Indonesia: 13 February 2013.
  • Singapore/Malaysia: 23 March 2013.
  • Turkey: 20 August 2014.
  • CSN:Z: 23 September 2014.
  • Vietnam: 26 March 2015.


Mode Purchase cost Ammo cost Total
Original $1200 $350 (35 rounds) $1550
Scenario $1200 $6020 (600 rounds) $7220
Damage statistic (Normal mode)
Range 0m 36m
Armor Yes No Yes No
Head 129 141 92 101
Chest 52 57 44 49
Gut 56 60 49 53
Leg 30 32 26 29
  • In Zombie Scenario, SKULL-1 can give a long stun to Pursuer-type zombie.
  • Be careful when buying SKULL-1's ammunition in Scenario, 600 rounds will burn out your money real fast.
  • It is very accurate, aim for the head with semi-firing mode for massive damage (~250+ to zombies and ~125+ to human).
  • Use the semi-auto fire mode to deal with enemy in far distances while full-auto fire mode if enemy is close to you.
  • This weapon can be an appropriate replacement for the Desert Eagle in normal matches.
  • SKULL-1 is a good barrier destroyer in Scenario modes.
  • Shoot zombies when they are in midair to knock them away. Note that it doesn't apply to heavy-type zombies like Deimos, Ganymede or Heavy Zombie.
  • Equip this weapon as your secondary in case you are shocked by Deimos and need to escape.
  • Use the semi-auto fire mode to kill zombies while full-auto fire mode for escaping.
  • Not recommended to combine with Deadly Shot due to low clip size, use it at dire situations or when the zombie is weak.
  • Aim for newly infected zombies as they are weak and easy to kill or soften them first and then use primary.

Tactics Against SKULL-1 Users[]

Normal matches[]

  • SKULL-1 users are dangerous if the player have experienced SKULL-1 abilities because it is more accurate than most high-caliber pistol. Be aware to battle with SKULL-1 user in close to middle range.
  • SKULL-1 will take you down immediately with just 1 shot to the head or 2-3 shots to the body despite wearing Kevlar and Helmet. Try to not counter them in close range unless you have good skills.
  • Avoid direct combat alone but work in groups. SKULL-1 users will not have enough ammo to kill you.
  • Surprise attack is recommended.
  • Do not run in a straight line or stand still, 1 shot to the head can perform instant kill.

Zombie Mods[]

  • If you have a massive amount of 5000 HP and more, feel free to infect SKULL-1 users if they do not have a good primary and melee weapon.
  • Use zombies with small hitboxes like Light Types to minimize the chance of being shot at. Bunnyhop if possible.
  • Heavy types is also recommended when facing SKULL-1 users too due to SKULL-1's low knockback.


  • Higher damage (+6)
  • Higher fire rate (+2%)
  • Cheaper (-$300)
  • Higher knockback to zombie
  • More accurate (+1%)
  • Same recoil (30%)
  • Same weight (0% speed reduction)
  • Has two firing modes
  • Unable to shoot out explosive ammunition
  • Lower clip capacity (-3 rounds)

  • Bullets can penetrates 4 objects
  • Higher fire rate (+3%) (A Mode)
  • Higher fire rate (+7%) (B Mode)
  • High knockback to zombie
  • Can be fired in full-auto mode
  • More accurate (+27%)
  • More accurate (+17%)
  • Same base damage in A mode (47)
  • Same recoil (30%)
  • Same weight (0% speed reduction)
  • Same magazine size (7/35)
  • Same reload time (2.2 seconds)
  • More expensive (+$550)
  • Purchaseable by cash points and during special events only
  • Easily runs dry

Icon anaconda cso
  • Higher damage (A mode)
  • Higher knockback
  • Higher rate of fire (+1%)
  • Lower recoil (B mode)
  • More accurate (+4%)
  • Both of them can be bought for permanent in cash points
  • Same magazine capacity (7/35)
  • Same recoil (A mode)
  • Same reload time (2.2 seconds)
  • Same weight (0% speed reduction)


Firing sound

Reload sound

Draw sound


  • SKULL-1 is the second revolver that appears in the game, the first one is Colt Anaconda.
  • The SKULL-1 is based off the MP412 REX since it automatically ejects the bullets using casings when the barrel is tipped down.
    • Anaconda and King Cobra's casing has to be extracted manually, making SKULL-1 the only revolver so far with automatic extraction.