Events and invasions
MU Fighters runs a steady rotation of events and invasions with rewards that actually matter. The three classic mini-games — Blood Castle, Devil Square and Chaos Castle — now hand out jewels and boxes on completion, on top of the XP and Zen they already gave. And world bosses, along with the scheduled invasions, drop Box of Luck. This guide explains how each one works and, above all, what drops per the server’s current configuration.
Overview
Two content groups grant item rewards:
- Per-level mini-games: Blood Castle (levels 1–8), Chaos Castle (levels 1–7) and Devil Square (levels 1–7). The reward scales by tier (the event’s level band).
- Bosses and invasions: world bosses and the Golden and Red Dragon invasions drop Box of Luck.
Entry requirements (minimum level, ticket, cost, duration and map for each event) follow the server’s current configuration — this guide focuses on how they work and the configured item rewards.
How you earn the mini-game reward
The rule is simple and generous: every participant who completes the event gets the item reward, delivered straight to the inventory. You don’t have to win or stay alive to the end — the reward is configured for “all participants”.
Beyond the jewels and boxes below, the event’s XP and Zen still apply — the item rewards were added on top of what already existed; nothing was removed.
Tiers (the event’s level bands)
The item reward depends on the event level (the GameLevel), not on your character level:
| Tier | Event levels | What drops |
|---|---|---|
| Low | 1–3 | Jewels only |
| Mid | 4–6 | Jewels + Box of Luck +0 |
| High | 7–8 (BC) · 7 (CC, DS) | Jewels + Box of Luck +8 (excellent) |
The jewels granted per tier:
| Tier | Jewels |
|---|---|
| Low | Jewel of Bless, Jewel of Soul |
| Mid | Jewel of Soul, Jewel of Chaos, Jewel of Life |
| High | Jewel of Creation, Jewel of Guardian, Jewel of Harmony |
The Box of Luck is a multi-purpose reward box. On the Mid tier it comes +0 (basic); on the High tier it comes +8, the level band that yields excellent items.
Blood Castle
Blood Castle has 8 levels (1 to 8). It’s the event with the most reward bands: the higher the level you play, the better the jewels, and the Box of Luck kicks in.
| Level | Tier | Item reward |
|---|---|---|
| 1, 2, 3 | Low | Jewels (Bless, Soul) |
| 4, 5, 6 | Mid | Jewels (Soul, Chaos, Life) + Box of Luck +0 |
| 7, 8 | High | Jewels (Creation, Guardian, Harmony) + Box of Luck +8 |
Chaos Castle
Chaos Castle has 7 levels (1 to 7). Same tier logic, topping out at level 7.
| Level | Tier | Item reward |
|---|---|---|
| 1, 2, 3 | Low | Jewels (Bless, Soul) |
| 4, 5, 6 | Mid | Jewels (Soul, Chaos, Life) + Box of Luck +0 |
| 7 | High | Jewels (Creation, Guardian, Harmony) + Box of Luck +8 |
Devil Square
Devil Square has 7 levels (1 to 7), with the same reward scale as Chaos Castle.
| Level | Tier | Item reward |
|---|---|---|
| 1, 2, 3 | Low | Jewels (Bless, Soul) |
| 4, 5, 6 | Mid | Jewels (Soul, Chaos, Life) + Box of Luck +0 |
| 7 | High | Jewels (Creation, Guardian, Harmony) + Box of Luck +8 |
World bosses (Box of Luck)
Bosses drop Box of Luck when they die. Two things change between them: the drop chance and the box level (the higher it is, the better the contents). They split into three tiers:
| Boss tier | Box level | Drop chance | Bosses |
|---|---|---|---|
| Mid | +0 | 20% | Balrog, Lizard King, Zaikan, Illusion of Kundun 1, 2 and 3 |
| High | +8 (excellent) | 25% | Dark Phoenix, Witch Queen, Hell Maine, Illusion of Kundun 4 and 5 |
| End | +10 | 50% | Bloody Witch Queen, Erohim, Illusion of Kundun 6 and 7, Selupan, Devil Lord, Soram, Balram |
That’s 19 bosses with a configured box in total. The more end-game the boss, the higher the chance and the better the box — End bosses drop Box of Luck +10 on half their kills.
Each boss’s map and recommended level range follow the server’s current configuration. The exact contents of each Box of Luck per level are also set in the server’s current configuration.
Scheduled invasions
Two recurring invasions bring special monsters to the maps and drop items and boxes:
| Invasion | Mobs | Duration | Recurrence |
|---|---|---|---|
| Golden Invasion | 9 golden mobs | 30 min | every 4h |
| Red Dragon Invasion | invasion monsters (per the server’s current configuration) | 30 min | every 6h |
The maps for each invasion and the exact times follow the server’s current configuration — keep an eye on the Events board on the home page and the gold global notices in game.
How to start an event
The mini-games open on the server’s schedule. For testing, staff (GM) can trigger them manually with /startbc (Blood Castle), /startcc (Chaos Castle) and /startds (Devil Square) — whether these commands exist in the build follows the server’s current configuration.
On completion, check your inventory: besides XP and Zen, you should receive the tier jewel and, on the mid and high tiers, a Box of Luck (+8 on high levels). Then just open the box and hope for the best.