| CSO2 |
2018[]
26 April 2018[]
- CSO2 Korea officially closed and server shutdown.
22 February 2018[]
- Announcement of server shutdown
- Creation of new ID is restricted
- The sale of cash items in-game is ended
- Neighboring channeling members are restricted from providing third party information to the main channel
2017[]
21 December 2017[]
- Updated Zombie Z
- Added Snow Queen Helga and Ice Hunter Naomi
- Added MK18 Mod1 Pulse and Pulse Prototype
- Added HK M27 IAR Xmas, AR-57 PDW Xmas, Gilboa Snake Xmas and Galil Sniper Xmas
14 December 2017[]
- Updated Zombie Z
- Added TMP Melt Plus
30 November 2017[]
- Added Zombie Crush Abduction Episode 3: Wound
- Updated Penthouse, Dust, Italy and Militia for Zombie Z version
- Added Sponsor Choi Ji Yoon & Explorer Yuri
- Added AI AWM Gauss Plus, M60E4 Steam and its prototype variant, Gold Eagle Z-M LR300
- Added Dione Costumes & Knives
16 November 2017[]
- Updated and added 3rd Supply Base to Hide and Seek Zero
- Updated Estate, Nuke, Prodigy and Uprising for Zombie Z
- Added Tomahawk Black
- Held 4th anniversary event
9 November 2017[]
- Added Classmate Miyu and Transfer Student Athena
- Added Tomahawk Ice & Fire
- Added SD skin for SCAR-H, MP7A1, Desert Eagle, and P228
- Added Ruby skin for UMP45, MP7A1, and KRISS Vector
- Adopted M3 Grease, M1A1 Thompson, and M1918 BAR
- Added Opal skins for these three new weapons
26 October 2017[]
- Added new Zombie Crush Abduction: Nightmare
- Added Oberon Knife
19 October 2017[]
- Added New Mutant Phoenix to Zombie Z
- Added Duo and Penthouse to Hide and Seek Zero
- Added AKM Phoenix, Armsel Striker-12 Honor, and FNC Honor
21 September 2017[]
- Patched Zombie Crush: Trace and Hide and Seek Zero
- Recruited Pilot Carrie and Desert Mercenary Viper
- Added M99 Railgun and Black Mamba skins
14 September 2017[]
- Zombie Z Balance Adjustment
31 August 2017[]
- Added Office to Zombie Z mode
- Updated Zombie Z and Z-City Duo modes
- Added AKM Bamboo and MG3 AA Neon
17 August 2017[]
- Patched Z-City Duo
- Released Death Valley
- Added secondary password function
- Adopted T91, XT-97
- Added [Marble] finished to T91, XT-97, T65K1 and T86
- Added Kukri and Kukri Amethyst
31 July 2017[]
- Recruited Kenji and Joe
- Added MP7A1 Neon
- Added Gold versions of KMP AEK-973, Izmash AK-12, FN SCAR-L, Bushmaster ACR
- Adopted Alexander .50 Beowulf
20 July 2017[]
- Added new mode Big Game
- Added Spray function
- Recruited Swimwear Emma and Swimwear Tammy
- Added Fortune Icebox Plus
- Added TMP Melt, TMP Melt Prototype, and P90 Bamboo
6 July 2017[]
- Added new mode Zombie Crush Abduction
- Add convenience system
- Improving Hall of Fame / watching system
- Zombie Z Improve visual effects and balance
- Added AI AWM Lion, MK18 Mod1 Falcon, AKM Bear, SVD, Phobos Strike
- Lucky black box resale
- Rank Season 5
22 June 2017[]
- 5peration Part 2: Game Engine Update
- Added Vertigo
- Zombie Z New Look, Survivor Map Balance
- Added M60E4 Bamboo
- Added game option graphic steps
9 June 2017[]
- 5peration Part 1: UI Renewal
- Z-City Update
- Expanded 'Dirty Street' map
- Add vehicle function
- Added XM8 Carbine, HK416C, HK M27 IAR
- Added [Pink Miu] paint for above weapons and HK G3KA4 and HK G36K
- Added [Honor] paint for AI AWM and KRISS Vector
25 May 2017[]
- Added Inferno to Zombie Z
- Added Armsel Striker-12 New Panda
11 May 2017[]
27 April 2017[]
- Added Super Team Deathmatch
- Added Festival to Zombie Z mode
- Added Pool Party Lisa and Mila
- Added SVT-40, Mosin
- Added QJY-88 Panda
13 April 2017[]
- Reopened closed modes
- Adoted Galil Sniper and Galil Sniper Tesla
- Recruited Anti-Terror Ryan and Desert Ain Berg
- Added F2000 Neon, M1014 Cupid
- Added Tactical Gloves and Tamiya Doll
23 March 2017[]
- Added mode of the month, 'Hide and Seek Bread'
- Renewed Black Market
- Added AR-57 PDW Neon & QBZ-95 Panda
- Added Cobalt finishes for FN Five-seveN, TMP, Bushmaster ACR, and Hunting Knife
- Added Honor finishes for Daewoo K12 & Benelli M4
23 February 2017[]
- Added Weapon Stores to Z-City
- Added 4 Amethyst skins for USAS, Kriss, Desert Eagle and M60E4
- Added M16A4 M203
9 February 2017[]
25 January 2017[]
- Patched Z-City
- Recruited Helga and Naomi
- Added M3 Dragon M3 Dragon Prototype
- Added Honor skins for Colt M16A2, USP, Glock
- Added [Chicken] costumes
29 December 2016[]
- Patched Play Room
- Released Play Zone
- Added Party Firecracker
15 December 2016[]
- Recruited Mila Nutcracker & Lisa Nutcracker
- Adopted MG3 Xmas, USAS-12 Xmas, Barrett M99 Xmas, PAW-20 Xmas, Christmas Candle
- Released Christmas Office
1 December 2016[]
- Added decomposition system
- Zombie Z Fourth Update: New mutation addition, Mutation balance adjustment, Mutation promotion device, Improved convenience, Prodigy map added
- Adopted Triple Threat
- Added Natalie (Santa Girl) Costume
17 November 2016[]
- Added Team Deathmatch/CSO2 to regular Seasons
- Added new content for Black Market: AI AWM Gold, MK18 Mod1 Gold, AKM Gold, USP Gold, Dual Elites Gold, Glock 18 Gold
- Added new Mileage product: CS06 Panda
3 November 2016[]
- Added Black Market
- Recruited GSG-9 & Phoenix Connexion
- Adopted Arsenal AF2011-A1, DP-12 and Gilboa Snake
- Added Ruby skins for these weapons and Stoeger Double Defence
20 October 2016[]
- Updated Challenge Mode: Boss Battle
- Added Black Fortune Box
- Adopted Opal skins for Daewoo K5, Daewoo K1, Daewoo K2C, Daewoo K12 and Daewoo USAS-12
- Added QBS-09 Panda
29 September 2016[]
- Added Challenge Mode
- Added Light Zombie and Heavy Zombie
- Recruited Athena and Miyu
- Added AI AWM skins: Gauss, Prototype Gauss
- Added Gauss Replica skin for USP, Glock, Desert Eagle
- Added Golden Battle Toy Hammer and Golden Crowbar
- Added Cat Wireless Telephone
- Added Turbo Blade
- Updated Blue Fortune Box
8 September 2016[]
- Updated Zombie Z: 4 types of mutations
- Released Metro (AWP Battle)
- Recruited Marie (Vacation) & Tammy (DJ)
- Adopted Barrett M95, Barrett M107A1 CQ and QSZ-92 Panda
- Added new Costumes: [Sun glass], [Sling bag], [DJ headset], [DJ controller]
- Applied lobby stray sound
- Added Fortune bag
8 September 2016[]
18 August 2016[]
- Added 5 new skills in Zombie Z
- Added 5 Cobalt weapons to Blue Fortune Box: MP5, M60E4, MK18 Mod1, SIG SG550 Sniper, Remington M870
- Added Battle Toy Hammer to Blue Fortune Box
- Added [Task Force] costumes
- Added Penthouse to Zombie Z
4 August 2016[]
- Patched Zombie Z mode
- Adopted M79, China Lake, M32 MGL, Neopup PAW-20
- Added [Hunter] Arms Rating
21 July 2016[]
- Added two growing systems in Hide and Seek mode
- Released Penthouse
- Added ranking system information
- Added matching automatic delay compensation system
- Added class off-season rewards
- Added friend referral system
- Added new characters (Hasan and Kwan)
- Hide and seek new weapons only add TAC-15 (private), Net Launcher Gold (icebox), Harpoon Gold (icebox)
- Added a new box Ice Box
- Added new hats (Flamingo tube, watermelon hat)
- The class initialization compensation (Napoleonic hat, M1911)
7 July 2016[]
- Patched RE Gun Deathmatch
- Added PKM, F2000, Beretta MX4 Storm, AKM, G3SG1 Chromes to Mileage
- Modified several zombie maps (Survivor, Aztec, Centered)
23 June 2016[]
- Adopted M9 Bayonet and Pipe Wrench Flame
- Introduced Flame Weapon Box
- Re-patched Rocket Battle
- Added Survivor into Zombie mode
- Reorganized Battle dashboard system
9 June 2016[]
- Patched Mini Team Deathmatch
- Released Dust Rush
- Updated personal chatting system and full-screen window mode function
26 May 2016[]
- Adopted Z-M LR300 and Battle Toy Hammer
- Patched Mini Original
- Released Duo
- Removed Casual Mission and Duel
- Updated some systems and features:
- Original and Team Deathmatch: Changed the max players from 32 to 24
- Added 10vs10 option
- Updated "Quick Entry" function
12 May 2016[]
- Adopted M16A4
- Released 3rd Supply Base
- Introduced [Task Force Combat Gloves], [Nurse Cap] and [Large Syringe Backpack] Costumes
- Updated some systems
28 April 2016[]
- Added AR-57 Amethyst, Dual Elites Amethyst, AWM Amethyst and K2C Amethyst into Amethyst Fortune Box
- Released Warehouse
- Updated Hide and Seek 2
- Introduced [Commando Beret & Sunglasses] and [Panda] Costumes
14 April 2016[]
- Added AEK-973 Cobalt, Striker-12 Cobalt and SCAR-L Cobalt into Blue Fortune Box
- Released Storage
- Held Special Gun Deathmatch event
31 March 2016[]
- Adopted AK-47 Monster, M4A1 Monster and AF2011-A0
- Introduced AK-47 Monster Box, M4A1 Monster Box, Tammy Weapon Box and Starter Pack
24 March 2016[]
- Sold Candy Piece and Chocolate Piece
- Added Sugar Lump and Chocolate Chunk
- Held Piece of Love event
17 March 2016[]
- Released Headquarter
- Introduced Character Selecting system for Daily Challenge Mission
- Improved Quick Start and Rank Score systems
3 March 2016[]
- Adopted MK18 Mod1, AKM, AI AWM, XM1014 Cupid and White Day Grenade
- Added Studio into Hide and Seek 2
- Added [Frog], [Spring Outing Hat], [Bombard Zombie Hat] and [Bombard Zombie Bag] Costumes
18 February 2016[]
- Released Laboratory
- Unleashed Bombard and Worker zombies for Commander-Z
- Added [Laboratory Enhancement] system for Commander-Z
28 January 2016[]
- Adopted Hunting Knife Monkey, Desert Eagle Phoenix, MP7A1 Phoenix and Silver weapon series
- Patched Gun Ball
- Released Virtual Arena
- Introduced Black Fortune Box
- Added [Monkey] Costumes
- Added Hard difficulty to Zombie Crush
- Updated Hide and Seek 2
- Held Lunar New Year and Valentine events
14 January 2016[]
- Adopted Triple Action Thunder and Barrett M99
- Recruited Heather and Sonya
- Renewed Commander-Z, Zombie Crush and Daily Challenge Mission:
- Added upgrade shortcut keys
- Added automatic skill-upgrading function
- Add character options
- Added Freighter into Hide and Seek 2
7 January 2016[]
2015[]
17 December 2015[]
- Adopted Izmash AK-12 Xmas and Bushmaster ACR Xmas
- Recruited Marie (Bunny Girl) and Natalie (Santa Girl)
- Addded Estate into Hide and Seek 2
- Introduced Christmas Fortune Box
- Held Christmas event
- Updated Combination System
3 December 2015[]
- Adopted M3 Boom
- Recruited Carrie and Viper
- Patched Hide and Seek 2
- Introduced Character Card system
19 November 2015[]
- Adopted M1 Garand, CS06 and Radon MSBS-B
- Added Storm into Zombie House
- Introduced VIP system
5 November 2015[]
- Adopted QBS-09, QSZ-92, M1903A3 Springfield, AK-47 Solo and M4A1 Solo
- Introduced [Spartan Helmet] Costume
- Introduced Daily Challenge Mission and Clan Mission
22 October 2015[]
8 October 2015[]
- Added Estate into Zombie House
- Patched Personal Training and Casual Mission
- Removed DIY
17 September 2015[]
- Released Survivor
- Introduced Amethyst Fortune Box and Booster Item
- Added [Rabbit Hat], [Rice Cake Stick] Costumes and [Maple Leaf] Pace Effect
- Added M60E4 Gold, FAMAS Gold, Galil Gold, MG3 AA Amethyst, Double Defence Amethyst, Izmash AK-12 Amethyst and Bushmaster ACR Amethyst into Combination System and Amethyst Fortune Box
- Added MK23 OHWS, USP Dolphin and USP Camo into Combination System and Green Weapon Box
- Added Amethyst Piece and Amethyst Ingot
- Updated Combination System
- Added "Easy" difficulty to Zombie Crush
3 September 2015[]
- Released Toscana and Dust Duel
- Added FAMAS Chicken, Galil Caracal, SG550 Schweizergarde, G3SG-1 Heer, SG550 Camo and G3SG-1 Camo into Combination System and Green Weapon Box
- Introduced Broadcasting System (Beta)
20 August 2015[]
- Adopted Daewoo K2C
- Added Chrome Skins (Grade S) for AR-57 PDW, MP7A1, KRISS Vector and Armsel Striker-12
- Added Chrome Piece, Chrome Ingot and Carbon Fabric for Combination System
6 August 2015[]
- Adopted Taser Knife
- Recruited Tammy and Emma
- Patched DIY mode
- Removed Ice Ding
- Released Dust
- Updated Matchmaking system
23 July 2015[]
- Patched Hide and Seek Cube
- Released Escape for Zombie Crush
- Added Matchmaking random rewards
- Updated Combination System
- Introduced naver channeling service
- Held "Oh! Fun!" event
9 July 2015[]
- Adopted Anaconda Red, Seal knife Camo and PKM Flame
- Added M3 Gold, MP5 Gold and Scout Gold into Blue Fortune Box
- Patched Hide and Seek Teammatch
- Added [Police Cap], [Straw Hat] and [Poseidon Magic Rod] costumes
- Reformed Ranking system
- Reorganized Zombie Crush:
- Added 4 new skills (optional): Bombing Support, Fitness Absorbing, Rampage and Spreading Shot
- Added 5 new items: Instant Resurrection, Recovery Capsule, CTU Funding, Automatic Turret and Shield
- Added more achievements for Zombie Crush and Hide and Seek
18 June 2015[]
11 June 2015[]
- Adopted Pipe Wrench Black and TRG-42
- Added M60E4 Komodo, SCAR-L Whale, KMP AEK-973 Eagle, Desert Eagle Hawk, M249 Bat, Scout Goat, M249 Camo and Scout Camo into Green Weapon Box
- Introduced Combination System
21 May 2015[]
- Adopted MG3 AA
- Patched Ice Ding mode
- Removed Rocket Battle
- Updated mileage system
30 April 2015[]
- Released Glowing Green Weapon Box
- Added Gold variants of Desert Eagle, AWP and Hunting Knife into Green Weapon Box
- Held events to recieve Green Weapon Boxes
23 April 2015[]
- Added double-jump function into Hide and Seek
- Added Tides into Hide and Seek
- Added Izmash AK-12, Bushmaster ACR, SCAR L and SCAR H into Arms Rating system
16 April 2015[]
- Introduced Matchmaking system
- Applied Enhancement system into Zombie House
- Released [Grass Smell] Pace Effect
2 April 2015[]
- Adopted HK G36K and Pipe Wrench
- Released Zombie House as an official game mode
- Added Assault, Italy, Aztec and Uprising to Zombie House
- Added [Baseball Cap] and [Baseball Doll] Costumes
- Updated Weapon Unlock
26 March 2015[]
- Celebrated Mila's birthday (2nd April)
- Accummulate 30 minutes of game time daily to receive Mila's Coin, [Birthday Cake Hat] Costume and Birthday Cake Grenade
- Play Mila's favorite game modes (Hide and Seek, Zombie mode, Origin or Team Deathmatch) to obtain Green Weapon Boxes
19 March 2015[]
- Released Museum
- Released Survival for Zombie Crush
5 March 2015[]
- Patched Rocket Battle
- Introduced Arms Rating system
- Released Green Weapon Box
- Enabled Buy Menu Edit
16 February 2015[]
- Patched Zombie Crush
- Released Penetration
12 February 2015[]
- Recruited Choi Ji Yoon (Limited Edition) and Yuri (Limited Edition)
- Adopted G3KA4
- Updated Highland for Zombie modes
- Held Red Fortune Box event
- Added [Sheep] Costumes
29 January 2015[]
- Released Tides
- Updated Dust2 for Hide and Seek
- Patched Zombie House
- Updated Militia for Zombie House
15 January 2015[]
- Released Festival
- Added observation view camera for Hide and Seek
- Added weapon reservation for Team Deathmatch
1 January 2015[]
- Adopted Stoeger Double Defence Shotgun
- Recruited Mila LE and Lisa LE
- Introduced Pig Tag mode
- Added Aquarium into Hide and Seek
- Released Blue Fortune Box
- Released more Pace Effects
- Added emoticons to chat
2014[]
18 December 2014[]
- Released Studio
- Introduced Pace Effect and Action Pack items
- Added Lisa and Mila Costumes
4 December 2014[]
- Released Ghost mode as an official game mode
- Updated Campaign mode
- Recruited Kim Dae-Ho and Kaze
- Revamped the HUD (Heads-Up Display)
13 November 2014[]
- Released Corner
- Introduced Fortune Box
- Added incentives for playing certain game modes
30 October 2014[]
- Released Freighter
- Held Turtle Doll event for Hide and Seek
2 October 2014[]
- Released Highland
- Released Hide and Seek as an official game mode
9 September 2014[]
- Big City improvement: Expanded the Big City
- Chat System improvement:
- System Screen improvement:
- Improved screen design to ease Weapon Unlock reading
- Associated the system summary page and search/sort/filter system
- Additional compensation will be given to the score achieved when the players obtained the Achievement
4 September 2014[]
- Introduced Hide and Seek and Campaign modes
- Released Market
- Recruited Natalie and Marie
21 August 2014[]
- Added Militia and Assault into Ghost mode
14 August 2014[]
- Introduced Ghost mode and Casual
24 July 2014[]
- Officially released Zombie Modes
- Added Centered to Zombie Modes
- Released Sewer
- Highlighted kill marks
10 July 2014[]
- Adopted Survival Knife
26 June 2014[]
- Adopted Daewoo K1A
- Released Kill House
- Added Cobble to Zombie Modes
12 June 2014[]
- Held event to support Korean Soccer National Team
- Held Soccer Ball Collecting event in Big City
- Fixed some minor issues
- Removed Crazy Bombing
29 May 2014[]
- Adopted Daewoo K5
- Added Uprising to Zombie Modes
15 April 2014[]
- Added Aztec to Zombie Modes
- Introduced Crazy Bombing
3 April 2014[]
- Adopted PKM and Remington M870
- Released Commander-Z mode
- Released Trainyard
27 March 2014[]
- Added SNL costumes
- Added Nuke and Militia to Zombie Modes
- Added shortcut ad to Zombie mode
22 March 2014[]
- Released Zombie Mode
13 March 2014[]
- Adopted Bushmaster ACR
- Adopted Izmash AK-12
6 March 2014[]
- Added Clan war 5 vs 5 system
- Added new server for clan war
27 February 2014[]
- Released Centered
- Added Bounty feature to Big City: Coop
- Added Yellow bear and Korea cap costumes
- Held AI AWP Special event
20 February 2014[]
- Adopted Hunting Knife
13 February 2014[]
- Released Duel mode
- Released Diner
- Adopted T65K1 and T86
- Held Valentine event
- Removed Reverse Gun Deathmatch mode
6 February 2014[]
- Released Angel wing costume
- Released Reverse Gun Deathmatch mode
- Removed Headshot mode and Defense mode
24 January 2014[]
- Released Defense mode and added Mabinogi Heroes characters
- Released Temple
- Resold Choi Ji Yoon and Yuri set
- Released Horse costume set
- Released Headshot mode
16 January 2014[]
- Released Cobble
- Added new costumes
- Revised Pig Mode
- Revised Special Mode
- Added Pistol Battle, AWP Battle, Knife Battle and AWP Forbidden modes
- Revamped User Interface and both server and lobby backgrounds
9 January 2014[]
- Adopted SCAR-L and AEK-973
- Recruited Lincoln and Mao
- Added new costumes
- Added EXP Up, Point Up and EXP + Point Up coupons
2013[]
24 December 2013[]
- Recruited Choi Ji Yoon
- Recruited Yuri
18 December 2013[]
- Implemented Cash point system
- Adopted AR-57 PDW
- Held Christmas event and Christmas game mode
12 December 2013[]
- Adopted TDI Kriss Super Vector
- Added Escort mission to Big City
5 December 2013[]
- Gave Elite Crew model to beta testers
- Patched Flag Capture mode
- Updated Big City
- Added VIP
28 November 2013[]
- Beta countdown ended, officially released
- Adopted RPG-7
- Patched Big City: Coop
- Released Vantage
31 October 2013[]
- Adopted M60E4
- Adopted Beretta MX4 Storm
- Released Militia
17 October 2013[]
- Patched Pig Mode
- Recruited Michael and Kara Chenko
- Log in continuously daily for numerous prizes:
- Day 1: 1000 points
- Day 2: 2000 points
- Day 3: Walter PP Custom (Permanent)
- Day 4: Snack (50 units)
- Day 5: 3000 points
- Day 6: Michael and Kara Chenko
- Day 7: AWP Cupid (Permanent)
- Day 8: Hamper (10 units)
- Day 9: Snack (50 units)
- Day 10: 5000 points
- Day 11: 10,000 points
- Day 12: Nexon coin (5 units)
2 October 2013[]
- Released Aquarium
- Adopted FN FAL and FN FNC
- Adopted FN F2000 and FN SCAR H
- Adopted Daewoo DR200
- Added [Tortoise Shell] and [Fox Tail] costumes
12 September 2013[]
- Adopted Armsel Striker-12
- Released Aztec
- Released Assault
29 August 2013[]
- Added C4 Countdown
- Released Prodigy
22 August 2013[]
- Added [Jeep] to Big City
- Added [Bot Sniper] to Big City
- Added [Squad Leader] to Big City
- Recruited Mila and Lisa
14 August 2013[]
8 August 2013[]
- Added Vehicle function in Big City
- Added grenade throwing function for bots
- Fixed known bugs