There are 15 special Zombie Sets:
- March 21 ~ April 4, 2012
The players that were inactived for 3 months since the given date will receive all zombie sets for 3 days.
- May 24~ June 6, 2012
The player will receive all the zombie sets for 7 days if they logged in during this event.
- After the Free Update patch, Gruesome Assassin, Merciless Destruction, Demented Doctor, Fire and Curse, Terrifying Terror, Brutal Slayer, Pain Dominator, Death Guide, Z-VIRUS Transfectant and Horror and Madness (for Counter-Strike Nexon: Zombies) were removed as the zombies, weapons and items become default in all player's inventories, while the Bloody Blade was removed.