Do not take them as absolute truth until the update in question comes out.
22 August 2024[]
- Held 2024 Season 20
- Held League Season 16
- Rebalanced Zombie
- Updated PC Room Premium Benefits
- Held various events
- Held Bonus Disassembly
- Added Brionac, OICW Hellfire, Electron-III, Wind Walker, Arcana I, Arcana II and Arcana III
- Added Trace Decoder
- Added Arcana I and Arcana III
- Updated Battlefield Supply
- Updated Zombie Scenario
- Fixed various bugs
8 August 2024[]
- Released Secret Plan
- Updated Family War
- Improved OICW Hellfire performance
- Held Grand Prix Final LIVE Guide for the Grand Sports Festival
- Held Mosquitoes event
- Held Mileage Auction
- Resold Queen Ishmael and Butler Faust
- Fixed various bugs
25 July 2024[]
- Held CSO Esport Grand Prix festive and its related events
- Applied Fever paint and medal as a reward for viewers of the event
- Held Second quarter of NEXON 30th anniversary event for Counter-Strike Online along with its medal
- Discovered Columns
- Added Sky Garden and Estate for Zombie Hero Rebalanced (BETA)
- Reintroduced Clan Battle as Family War
- Zombie Conquest entered full release stage
- Held Find the Zombies event
- Resold Death Eater and adding it to Transcendent Pass
- Resold Rotation Classes: Kai, Lynn, Immortal Eric, Smile Mary
- Created Paint Decoder
- Adjusted Brionac and OICW Hellfire performance
- Added Ishmael and Ethan on Class Decoder active pool
- Minor bug fixes
11 July 2024[]
- Adopted Brionac, OICW Hellfire, Electron-III
- Held Radiance Fragment shop
- Held NEXON 30th anniversary event for Counter-Strike Online
- Applied Silver Tiger paint for Satellite Mine
- Opened Mileage Auction along with 3000 Mileage bidding event
- Installed Part System on MG3 Gold Edition, AS50, AS50 Pink Gold
- Updated Daily Login
- Chain mission stage 3 progression issue fix
- Majority of bug fixes
27 June 2024[]
- Adopted Wind Walker, MG36 Refine, Dual TDI Kriss Super Vector Refine
- Recruited Karin and Milia
- Held Nexon 30th Anniversary Web Event for Counter-Strike Online (Scheduled from July 1st)
- Applies some changes on Zombie Hero Rebalancing (BETA)
- Held CSO E-Sport Festive Grand Prix cheering event
- Changed New/Returning User bonus event
- Held Wind Walker fragment collection event
- Held Bonus Disassembly event
- Held Zombie Hero Rebalance (BETA) supply, play and review event
- Added Gold Tiger Paint for Quantum Horizon and Silver Tiger Paint for Special Duck Foot Gun
- Resold Drakar weapon series with Drakar Decoder
- Held Drakar Coin for Drakar Upgrade Event
- Renewed Chain missions
- Updated Daily Login
- Closed Counter Shop
- Minor changes and majority of bug fixes
13 June 2024[]
- Released Coastal Palace
- GEN-Z Update (BETA): Reorganized Zombie Hero Rebalancing
- Held Extreme CP collecting event
- Fixed bugs regarding Zombie Hero Rebalancing (BETA)
30 May 2024[]
- Scheduled GEN-Z Update
- Released Zombie Hero Rebalance (BETA)
- Adopted Pulse Reactor
- Updated PC room premium benefits and rewards
- Updated Counter Shop general goods
- Held new/returning user giveaway supply and updated its rewards
- Held Rice Grenade event
- Opened Mileage Auction
- New class rotation group: Kai, Lynn, Immortal Eric, Smile Mary
- Added Mirage and Anemone to Class Decoder active pool
- Added Studio Creator trophy item
- Renewed login supplies
- Discontinued sale for paint items in Mileage Shop
- Various bug fixes
16 May 2024[]
- Held GEN Z update pre-registration event
- Held Bonus Disassembly
- Added Belial, Drakar-I, Drakar-II, and Drakar-III
- Resold Whip Sword
- Updated Transcendent Decoder
- Added Spell Lance Scarlet Rose
- Downgraded Dual Beretta Gunslinger
- Removed Blade Runebreaker
- Fixed various bugs
- Added Whip Sword to Transcendent Pass
2 May 2024[]
- Held 2024 Season 19
- Added CSO Branded Sunflower costume on Black Market
- Resold 2023 Season 17
- Opened League Season 15
- Added new honor shop items: 8 Choi Ji Yoon emoticons
- Added Counter Shop that replicates existing events
- Recruited Evita and Angelina with corresponding costumes and sprays
- Added Superstar medal
- Various bug fixes
- Modifications of certain map to prevent out of bounds abuse
18 April 2024[]
- Adopted Belial
- Held Belial Crafting event
- Sold Belial Blueprint on shop
- Resold Sandalphon along with Belial on Epic Decoder
- Added Satellite Mine, Ishmael, Ethan to Mileage Auction
- Updated Mileage Auction
- Held Family Nameplate Creation Request Event
- Resold Tyrant Mace
4 April 2024[]
- Resold Cousteau
- Held Collect Points to Find Pandas and Classic Weapon Distribution events
- Held Bonus Disassembly event
- Adopted Refine weapon series
- Held Random Rule Zombie Hero
- Reduced number of pop-ups for new/returning users
- Added login pop-up exposure control function
21 March 2024[]
- Recruited Gladius and Xiao Ming
- Held April Fool event
- Added [SD Xiao Ming] and [SD Gladius] sprays
- Added [Fried Noodle Hat] and [Steel Bag] costumes
- Updated Class Decoder:
- Added Dragon Knight Kyrix and High Elf Natasha
- Improved Sylphid performance
14 March 2024[]
- Released Pipeline
- Updated Training Ground
- Added [Fairy Tale] Theme Blocks to Studio (mode) and its related contest
- Added [CS Partner Creator Selection Box] with following items: 채리콥터, 루사엘, 심짐해, 씰나이프맨, 고대발잡이 sprays
- Adopted Sylphid
- Fixed various bugs
- Modified probability notation
29 February 2024[]
- Held Timed Bomb event
- Held Mileage Auction
- Resold Blue Rabbit Mirage and Alpaca Anemone
- Held Nyepi Holiday Play
15 February 2024[]
- Released Obstacle
- Held Obstacle Speedrun event
- Released 6 new Medals: [Perfect Soldier], [Perfect Raid], [Legendary Sword], [Feast of Swords], [Eternal Class], [Worker C]
- Added "Lets play with Zombies" Nameplate
- Open Random Weapon event for Zombie 3: Hero and Zombie 1: Original
- Adjusted various Zombie Scenario map for more convenient play.
- Updated Battlefield Supply
- Several adjustment for classes in inventory view
- Changed Point Transcendent Decoder and Point Class Decoder item package on shop
- Added ammunition icon for Naberius
- Modified Naberius special function description
1 February 2024[]
- Adopted Naberius, M134 Minigun Umbra, Crossbow Classic
- Held Lunar New Year Event and Dragon Scales shop
- Held CSO Grand Fest Season 3
- Held CSO 16th anniversary events
- Recruited Fey
- Added [Fey] paint
- Held Blue Dragon Hunt Lobby event and Stingray Kite event
- Held Fortune bag event
- Added Mirage, Anemone, Bomb Boost, Bomb Self-shield Parts to Mileage Auction
- Changed Zombie Z weapon levels
- Various bug fixes
18 January 2024[]
- Released Freeze
- Hold 2024 Season 18
- Held League Season 14
- Renewed Continuous Mission Rewards
- Quality of Life improvements
- Chat reorganization
- Improved inventory sorting
- Adopted Hyper Gaebolg
- Held Bonus Disassembly
- Updated Battlefield Supply
- Held FANTA:Z webpage event: CS-Marble
4 January 2024[]
- Added Zombie Advance Z event mode
- Resold Satellite Mine and FN57 Laevatein in Transcendent Decoder
- Resold Special Agent Mei and Pyromaniac Yuri in Class Decoder
- Held FANTA:Z Bingo webpage event
- Held Lucky Charm collection and Season double badge events