Hello.
This is the Gravity Co., Ltd. Ragnarok Online: Zero Operations Team.
Here is the notice regarding the October 17 (Wed) regular maintenance time and updates.
■ Maintenance Time
- All Servers: 09:30 ~ 12:00 (Completed)
■ Maintenance Details
- 10 types of Halloween limited costumes will be added and sold for 2 weeks.
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Period: After October 17, 2018 maintenance ~ Before October 31, 2018 maintenance
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Item List:
Costume Orange Halloween Hat, 
Costume Pirates Hood, 
Costume Gram Peony, 
Costume Vampire Hairband
Costume Tail Hat, Costume Dark Pumpkin-head, 
Costume Cube Mask, 
Costume Black Swallowtail Wings
Costume Straight Long (Black)
Costume Evil Bone Hat- 2 types of costumes that can be exchanged with the Limited Costume Exchange Ticket will be added.
Costume Devil
Costume Drooping Sorin Doll HatPlease familiarize yourself with the maintenance details so that there is no inconvenience in your use of the game.
Thank you.
Gravity Co., Ltd. Ragnarok Online: Zero Operations Team