Activities, dungeons & eventsIntroduction
The War of 
Emperium is the weekly castle war between guilds. Win a castle, hold it, and your Guild Master claims Guild Chests.
- Saturday 17:00 (Paris time)
- 5 castles open at most
- 5 Guild Chests for each castle held at the end of the war
- Monsters are back in the castles, as they should be, unless the castle belongs to a guild.
- The war moves from city to city: Prontera, then Aldebaran, then Payon, then Geffen, and back to Prontera.
- Once the war is over, the Guild Master of each winning guild claims the Guild Chests at Midgard's Castle (NPC Kwaii).
- An Emperium Break rank and a kills rank also exist, for your own pride.
How many castles open?
It depends on how many players are connected. With 5 castles, the entire city where the war takes place is open.
| Players connected | Castles open |
|---|---|
| Less than 80 | 1 |
| From 80 | 2 |
| From 150 | 3 |
| From 200 | 4 |
| From 300 | 5 (maximum) |
Schedule
Every Saturday at 17:00 (Paris time). The war lasts between 1h15 and 1h30.
Chest WoE
5 Guild Chests
For a castle that was in the war and is owned by a guild at the end of it.
1 Guild Chest
For any other castle owned by a guild.
A Guild Chest gives at most 3 items from the list below. The rarest items are rolled first.
| Chance | Item |
|---|---|
| 80% | Chest (zeny) |
| 80% |  Bloody Branch |
| 60% |  Old Violet Box |
| 30% |  Yggdrasil Berry |
| 20% |  Official Hat Lv1 |
| 20% | Stuff Box Lv1 |
| 15% | Gem Box Lv1 |
| 10% |  Elite Bloody Branch |
| 10% | Stuff Box Lv2 |
| 10% |  Official Hat Lv2 |
| 10% |  Old Card Album |
| 3% |  Official Hat Lv3 |
| 3% | Gem Box Lv2 |
| 3% | Stuff Box Lv3 |
| 2.5% |  Broken Weapon |
| 1% | Random Blueprint |
| 1% | Stuff Box Lv4 |
| 0.5% |  Broken Legend |
| 0.25% | Stuff Box Lv5 |
No Flee penalty anymore.