boss
Hydra
Hydra is a boss documented in 0.99B, 1.0, Season 2, Season 3, Season 4, Season 5, Season 6 and Season 20. In Season 6 it is level 74 with 25.000 HP and spawns in Devil Square and Atlans.
Stats by version
| Value | 0.99B | 1.0 | Season 2 | Season 3 | Season 4 | Season 5 | Season 6 | Season 20 |
|---|---|---|---|---|---|---|---|---|
| Item level | 74 | 74 | 74 | 74 | 74 | 74 | 74 | 74 |
| HP | 39.000 | 19.000 | 19.000 | 19.000 | 19.000 | 19.000 | 25.000 | 19.000 |
| Min damage | 250 | 350 | 250 | 250 | 250 | 250 | 450 | 250 |
| Max damage | 310 | 410 | 310 | 310 | 310 | 310 | 310 | 310 |
| Defense | 200 | 240 | 200 | 200 | 200 | 200 | 200 | 200 |
| Magic defense | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 200 |
| Attack rate | 430 | 430 | 430 | 430 | 430 | 430 | 430 | 430 |
| Defense rate | 125 | 125 | 125 | 125 | 125 | 125 | 125 | 125 |
| Attack range | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 |
| View range | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 |
| Speed (ms) | 400 | 400 | 400 | 400 | 400 | 400 | 400 | 400 |
| Respawn (s) | 150 | 10 | 150 | 150 | 150 | 150 | 21.600 | 86.400 |
| Max item level dropped | — | — | — | 3 | 3 | — | 3 | 2 |
Differences between versions
- HP: 0.99B 39.000 → 1.0 19.000 → Season 2 19.000 → Season 3 19.000 → Season 4 19.000 → Season 5 19.000 → Season 6 25.000 → Season 20 19.000
- Min damage: 0.99B 250 → 1.0 350 → Season 2 250 → Season 3 250 → Season 4 250 → Season 5 250 → Season 6 450 → Season 20 250
- Max damage: 0.99B 310 → 1.0 410 → Season 2 310 → Season 3 310 → Season 4 310 → Season 5 310 → Season 6 310 → Season 20 310
- Defense: 0.99B 200 → 1.0 240 → Season 2 200 → Season 3 200 → Season 4 200 → Season 5 200 → Season 6 200 → Season 20 200
- Magic defense: 0.99B 0 → 1.0 0 → Season 2 0 → Season 3 0 → Season 4 0 → Season 5 0 → Season 6 0 → Season 20 200
- Respawn (s): 0.99B 150 → 1.0 10 → Season 2 150 → Season 3 150 → Season 4 150 → Season 5 150 → Season 6 21.600 → Season 20 86.400
- Max item level dropped: Season 3 3 → Season 4 3 → Season 6 3 → Season 20 2
Where it spawns
Number of spawn entries per map, counted in each version's spawn files (MonsterSetBase):
| Map | 97d | 0.99B | 1.0 | Season 2 | Season 3 | Season 4 | Season 5 | Season 6 | Season 20 |
|---|---|---|---|---|---|---|---|---|---|
| Atlans | — | 20 | 4 | 4 | 4 | 4 | 4 | 4 | 4 |
| Devil Square | — | — | — | — | 10 | — | — | — | — |
Special drop rules
ItemDrop rules covering level 74 monsters (the server sets the chance):
- Blue Chocolate Box Season 3
- box of blue ribbon Season 3
- Devil's Key Season 3
- Illusion Sorcerer Covenant Season 3
- Jewel of Chaos Season 3
- Pumpkin of Luck Season 3
- Rena Season 3
- Spirit Season 3
- Jewel of Bless Season 3
- Jewel of Creation Season 3
- Jewel of Life Season 3
- Jewel of Soul Season 3
- Blue Chocolate Box Season 4
- box of blue ribbon Season 4
- Golden Cherry Blossom Branch Season 4
- Jewel of Chaos Season 4
- Lucky Coin Season 4
- Pumpkin of Luck Season 4
- Rena Season 4
- Sphere (Mono) Season 4
- Spirit Season 4
- Symbol of Kundun Season 4
- Jewel of Bless Season 4
- Jewel of Creation Season 4
Similar-level monsters on the same maps
- Elite Ogre
- Elite Orc
- Axe Warrior
- Ax Warrior
- Lizard Warrior
- Golden Vepar
- Lizard King
- Ogre archer
- Orc Archer
- Silver Valkyrie
Compared with other monsters
In Season 6 it ranks #141 by level among 314 documented monsters. Against 13 similar-level monsters (±3) it has 2.1× their median HP.
- Metal Balrog Lv 77
- Golden Wheel Lv 77
- Chaos Castle 11 Lv 76
- Bloody Wolf Lv 76
- Chaos Castle 10 Lv 75
- Ax Warrior Lv 75
- Alquamos Lv 75
- Elite Ogre Lv 74
- Destructive ogre archer Lv 74
- Forest Orc Lv 74
Respawn
The file's RegenTime field is 21600: the interval the server uses to bring the monster back after it dies. Servers can change it.
FAQ
Where is Hydra?
Devil Square and Atlans (0.99B, 1.0, Season 2, Season 3, Season 4, Season 5, Season 6 and Season 20).
What level is Hydra?
0.99B: 74; 1.0: 74; Season 2: 74; Season 3: 74; Season 4: 74; Season 5: 74; Season 6: 74; Season 20: 74.
Play MU? MU Éter is a Season 4 server with its own systems. Discover MU Éter · MMO GRID is maintained by the MU Éter team.
Sources
- 0.99B — DarksTeam files
- 1.0 — Sapphire Project
- Season 2 — OGC-Files (GS 1.00.18)
- Season 3 — emulator (MUemu format)
- Season 4 — MUemu emulator (Update 40)
- Season 5 Episode 3 — ExTeam files
- Season 6 Episode 3 — LEGADO 4.3 emulator
- Season 20.2-3 — MUDevs emulator
Demand snapshot: SNAP-20261001-1040 · Data extracted on 2026-10-01