- Lorencia
- Dungeon
- Devias
- Noria
- Lost Tower
- Arena
- Atlans
- Tarkan
- Devil Square I-IV
- Icarus
- Blood castle I
- Blood castle II
- Blood castle III
- Blood castle IV
- Blood castle V
- Blood castle VI
- Blood castle VII
- Chaos Castle I
- Chaos Castle II
- Chaos Castle III
- Chaos Castle IV
- Chaos Castle V
- Chaos Castle VI
- Kalima I
- Kalima II
- Kalima III
- Kalima IV
- Kalima V
- Kalima VI
- Valley Of Loren
- Land Of Trial
- Devil Square V-VI
- Aida
- CryWolf
- Kalima VII
- Kantru
- Kantru Ruins
- Kantru Tower
- Silent Map
- Refuge of Balgass
- Barracks of Balgass
- Illusion Temple I
- Illusion Temple II
- Illusion Temple III
- Illusion Temple IV
- Illusion Temple V
- Illusion Temple VI
- Elbeland
- Blood Castle VIII
- Chaos Castle VII
- Swamp Of Calmness
- Raklion
- Raklion Hatchery
- Santa Village
- Vulcanus
- Duel Arena
- Doppel Ganger-A
- Doppel Ganger-B
- Doppel Ganger-C
- Doppel Ganger-D
- Empire Guardian-A
- Empire Guardian-B
- Empire Guardian-C
- Empire Guardian-D
- Loren Market
- Kalrutan
- Kalrutan 2
- Doppel Ganger Renewal
- Acheron
- Acheron 2
- Debenter
- Debenter 2
- Chaos Castle Battle
- Illusion Temple League
- Illusion Temple League 2
- UrkMountain
- UrkMountain 2
- Tormented Square of the Fittest
- Tormented Square Battle
- Tormented Square Battle
- Tormented Square Battle
- Tormented Square Battle
- Nars
- Ferea
- Nixie Lake
- DeepDungeon 1
- DeepDungeon 2
- DeepDungeon 3
- DeepDungeon 4
- DeepDungeon 5
- SwampOfDarkness
- KuberaMine1
- KuberaMine2
- KuberaMine3
- KuberaMine4
- KuberaMine5
- AbyssOfAtlas 1
- AbyssOfAtlas 2
- AbyssOfAtlas 3
- ScorchedCanyon
- RedIcarus
- ArnilTemple
- Gray Aida
- Old Kethotum
- Burning Kethotum
- Kanturu Underground
- Volcano Ignis
- BossBattle
- Bloody Tarkan
- Tormenta Island
- Gorgon
- Ice Queen
- Balrog
- Dragon
- Hydra
- Death King
- Zaikan
- Illusion of Kundun
- Erohim
- Dark Elf
- Balgass
- Nightmare
- Maya Hand
- Maya Hand
- Pouch of Blessing
- Gold Rabbit
- Helper Ellen
- Selupan
- Fire Flame Ghost
- Medusa
- Undine
- Salamander
- Sylphid
- Gnome
- Hellraiser
- Green Snake
- Yellow Snake
- Purple Snake
- Red Snake
- Golden Goblin
- Golden Titan
- Golden Tantalos
- Golden Erohim
- Golden Hell Maine
- Illusion of Golden Kundun
- Lord Silvester
- Moon Rabbit
- Pouch of Blessing
- Fire Flame Ghost
- Golden Goblin
- Chaos Goblin
- Chaos Goblin
- Chaos Goblin
- Chaos Goblin
- Core Magriffy
- Green Goat
- White Goat
- Purple Goat
- Red Goat
- Lord of Ferea
- Green Monkey
- White Monkey
- Purple Monkey
- Red Monkey
- Nix
- Green Rooster
- White Rooster
- Purple Rooster
- Red Rooster
- God of Darkness
- Pig (Green)
- (Elite) Great Bahamut of Abyss
- (Elite) Lizard King of Abyss
- (Elite) Scorched Warrior
- (Elite) Scorched Assassins
- (Elite) Scorched Wizard
- (Elite) Great Drakan
- (Elite) Phoenix of Darkness
- (Elite) Temple Ogre
- (Elite) Temple Gremlin
- (Elite) Temple Gargoyle
- BC/DS 1 Monsters
- BC/DS 2 Monsters
- BC/DS 3 Monsters
- BC/DS 4 Monsters
- BC/DS 5 Monsters
- BC/DS 6 Monsters
- BC/DS 7 Monsters
- AcheronGuardian
- BloodCastle 1
- BloodCastle 2
- BloodCastle 3
- BloodCastle 4
- BloodCastle 5
- BloodCastle 6
- BloodCastle 7
- ChaosCastle 1
- ChaosCastle 2
- ChaosCastle 3
- ChaosCastle 4
- ChaosCastle 5
- ChaosCastle 6
- ChaosCastle 7
- CW Elf Altar
- CW Hero List
- IllusionTemple Renewal 1
- IllusionTemple Renewal 2
- IllusionTemple Renewal 3
- IllusionTemple Renewal 4
- IllusionTemple Renewal 5
- IllusionTemple Renewal 6
- Ice Wind Castle GuildMaster
- Ice Wind Castle GuildMember
- Ice Wind Castle Player
- LastManStanding
- Sapi Queen Event Monster
- Medusa Event Monster
- MuRummy Reward 1
- MuRummy Reward 2
- MuRummy Reward 3
Zen
Zen is an item in MU Online Season 21 on MuEurope. It drops from Green Monkey. See the full list of drop locations below.
| Item | Zen |
| Can have skill | No |
| Can have socket options | |
Found Drops
All Locations
| Green Monkey |