Castle
Alliance and Horde compete to destroy the opposing crystal.
#Entry requirements
| Level | 400+ |
| Players | 100–400 |
| Players per team | 50–200 |
#Entry fee
| 400–599 | 2,000,000 |
| 600–999 | 3,000,000 |
| 1000–1199 | 4,000,000 |
| 1200+ | 5,000,000 |
#Schedule
Check the event calendar for the current world schedule.
| Open PvP | Monday |
| Optional PvP | Wednesday |
| Retro PvP | Sunday |
#Event stages
| Thais temple lobby | 19:40 |
| Teams assigned | 19:55 |
| Battle begins | 20:00 |
| Battle duration | 60 min |
| Crystal Towers unlock | 100 enemy kills |
| Castle Crystal unlock | 250 enemy kills |
#Rules
Destroy the crystal to win. Otherwise kills decide; equal scores draw. Deaths cause no experience loss.
#Rewards
| Winning team | 2 Castle Coins; +3 Skill; +5% XP; +3% Critical Chance; +3% Critical Damage |
| Other team | 1 Castle Coin |
#Reward chests
Chest contents are random; current rewards appear in the event window.
| Legendary | 1 | Gladiator Outfit; Class 4 Tier 2/3; 3,000 Highbini Coins; 25 Roulette Coins; 20 Castle Coins |
| Golden | 6 | Bag You Desire; Primal Bag; Boss Chest |
| Silver | 12 | 15 Prey Wildcard; 7 Roulette Coins; 2 Bless Scroll; 1 Redskull Remover; 5 Castle Coins; 400 Highbini Coins |
| Bronze | 25 | 7 Prey Wildcard; 4 Liquid Dust; 3 Exalted Core; 1 Bless Scroll; 1 Roulette Coin; 150 Highbini Coins |