Bosses and Scheduled Invasions
In MU Fighters, bosses and invasions are where the best drops show up. Every server boss drops a Box of Luck (the reward box), and the stronger the boss, the better the box it leaves behind. On top of that, two invasions run on their own at fixed times — the Golden Invasion and the Red Dragon Invasion — flooding the maps with special monsters. This guide covers which bosses exist, where they are, what they drop, and when the invasions happen.
How boss loot works
Every boss configured on the server drops the Box of Luck (the base box item). What changes from boss to boss is the box level (the contents inside) and the drop chance. Bosses are split into three tiers:
- Mid — basic box (level 0), 20% drop chance.
- High — excellent box (level 8), 25% chance.
- End — level 10 box, 50% chance.
The exact contents of each box by level follow the server’s current configuration — broadly, higher-level boxes have a better shot at excellent contents.
Where bosses spawn (maps)
Use the maps below to find each boss:
| Boss | Map | Tier (level range) |
|---|---|---|
| Balrog | Lost Tower | Mid (60–90) |
| Lizard King | Atlans | Mid (60–90) |
| Zaikan | Tarkan | Mid (60–90) |
| Illusion of Kundun 1 | Kalima 1 | Mid (60–90) |
| Illusion of Kundun 2 | Kalima 2 | Mid (60–90) |
| Illusion of Kundun 3 | Kalima 3 | Mid (60–90) |
| Dark Phoenix | Icarus | High (94–117) |
| Witch Queen | Aida | High (94–117) |
| Hell Maine | Aida | High (94–117) |
| Illusion of Kundun 4 | Kalima 4 | High (94–117) |
| Illusion of Kundun 5 | Kalima 5 | High (94–117) |
| Bloody Witch Queen | Aida | End (120–145) |
| Erohim | Land of Trials | End (120–145) |
| Illusion of Kundun 6 | Kalima 6 | End (120–145) |
| Illusion of Kundun 7 | Kalima 7 | End (120–145) |
| Selupan | LaCleon Boss | End (120–145) |
| Devil Lord | Fortress 1 | End (120–145) |
| Soram | Crywolf | End (120–145) |
| Balram | Crywolf | End (120–145) |
Bosses by tier and what they drop
Every boss drops the Box of Luck; the table shows the box level and the drop chance per kill.
Mid tier — basic box, 20% chance
| Boss | Map | Box (level) | Chance |
|---|---|---|---|
| Balrog | Lost Tower | Box of Luck (0) | 20% |
| Lizard King | Atlans | Box of Luck (0) | 20% |
| Zaikan | Tarkan | Box of Luck (0) | 20% |
| Illusion of Kundun 1 | Kalima 1 | Box of Luck (0) | 20% |
| Illusion of Kundun 2 | Kalima 2 | Box of Luck (0) | 20% |
| Illusion of Kundun 3 | Kalima 3 | Box of Luck (0) | 20% |
High tier — excellent box (level 8), 25% chance
| Boss | Map | Box (level) | Chance |
|---|---|---|---|
| Dark Phoenix | Icarus | Box of Luck (8) | 25% |
| Witch Queen | Aida | Box of Luck (8) | 25% |
| Hell Maine | Aida | Box of Luck (8) | 25% |
| Illusion of Kundun 4 | Kalima 4 | Box of Luck (8) | 25% |
| Illusion of Kundun 5 | Kalima 5 | Box of Luck (8) | 25% |
End tier — level 10 box, 50% chance
| Boss | Map | Box (level) | Chance |
|---|---|---|---|
| Bloody Witch Queen | Aida | Box of Luck (10) | 50% |
| Erohim | Land of Trials | Box of Luck (10) | 50% |
| Illusion of Kundun 6 | Kalima 6 | Box of Luck (10) | 50% |
| Illusion of Kundun 7 | Kalima 7 | Box of Luck (10) | 50% |
| Selupan | LaCleon Boss | Box of Luck (10) | 50% |
| Devil Lord | Fortress 1 | Box of Luck (10) | 50% |
| Soram | Crywolf | Box of Luck (10) | 50% |
| Balram | Crywolf | Box of Luck (10) | 50% |
Scheduled invasions
Two invasions run automatically at fixed times, no GM needed. They spawn special monsters on the maps and stay active for 30 minutes each.
Golden Invasion
The Golden Invasion spawns 9 golden mobs (the Golden special-drop monsters) and lasts 30 minutes. It runs every 4 hours.
- Maps: Lorencia, Noria, Devias, Atlans, and Tarkan.
- Times (UTC): 00:00, 04:00, 08:00, 12:00, 16:00, and 20:00.
Red Dragon Invasion
The Red Dragon Invasion spawns the Red Dragon (monster 44) and lasts 30 minutes. It runs every 6 hours, across 3 maps (not named in the configuration).
- Times (UTC): 02:00, 08:00, 14:00, and 20:00.
Invasion timetable
| Invasion | Monsters | Maps | Duration | Recurrence | Times (UTC) |
|---|---|---|---|---|---|
| Golden Invasion | 9 golden mobs | Lorencia, Noria, Devias, Atlans, Tarkan | 30 min | every 4h | 00 · 04 · 08 · 12 · 16 · 20 |
| Red Dragon Invasion | Red Dragon (monster 44) | 3 maps | 30 min | every 6h | 02 · 08 · 14 · 20 |
Mind the timezone: the times above are in UTC — convert to your local time before planning the hunt. These times and the exact rewards each invasion leaves follow the server’s current configuration.
Quick tips
- Hunt the tier you can handle. End bosses drop the level-10 box at a 50% chance — well worth it if your character can take them.
- Show up on the hour. Invasions spawn several golden mobs at once; bring a party to clear fast within the 30-minute window.
- The Kalima maps (1 to 7) hold the Illusion of Kundun, one per Kalima floor, scaling from Mid to End.
- Crywolf has two End bosses (Soram and Balram), and Aida packs several (Witch Queen, Hell Maine, and Bloody Witch Queen).
Happy hunting, and may the boxes drop loaded!