MapleStory/Monsters

There are many monsters in the world of MapleStory. The most dangerous monsters live deep in dungeons. Harmless monsters tend to stay by towns. Maple Island is one of the places that has very few monsters and are mostly very weak. Higher level monsters live in Victoria Island, but more dangerous monsters live closer to the center (Dungeon) of the island. Ossyria mainly has high level monsters as well as four major bosses.

There is also a complete list of monsters, Event Monsters, and bosses.

Items, leftovers, and Mesos
After killing a monster, Mesos or monster leftovers (ETC. items) may be dropped sometimes. However, the monster may also drop something rare (infrequently of course), such as an equipment, which can be worth a lot. The mesos dropped by a monster is varied, and the range varies with the monster (and is usually, but not always, somewhat proportional to the level of the monster, so you will find that in SOME circumstances monsters of same level drops the same range of mesos), the maximum value usually being 1.5x the minimum value.

JapanMS
JapanMS released the Ariant Colosseum, more area bosses, and added the Bot catching monsters. The Turkey Pet and the MapleStory Anime Pet Kino were also added.
 * Monsters Release Date: January 30, 2008 (GMT+9)
 * JapanMS Version 1.39

KoreaMS
KoreaMS has released more area bosses, as well as a special Jump Quest area in Victoria.
 * Monsters Release Date: January 24, 2007 (GMT +9)
 * KoreaMS Test Server Version 1.2.126

HongKongMS
HongKongMS released Formosa, consisting of Ximending and Night Market.
 * Monsters Release Date: January 24, 2007 (GMT +8)
 * HongKongMS Version 0.04

GlobalMS
GlobalMS released Leafre, Leafre dungeon (Dragon Forest and Dragon Canyon), Cave of Life and Horned Tail, as well as the 4th Job Advancement and Mounts. The bot catching monster Riche was added to the Zombie maps.
 * Monsters Release Date: January 23, 2008
 * GlobalMS Version 0.49

ChinaMS
ChinaMS released Ariant and its related maps and monsters.
 * Monsters Release Date: January 22, 2008 (GMT +8)
 * ChinaMS Server Version: 0.59

MapleSEA
MapleSEA has released all Mu Lung and Herb Town related maps and monsters, as well as Chinese New Year Events.
 * Monsters Release Date: January 23, 2008 (GMT +8)
 * MapleSEA Version 0.51

TaiwanMS
TaiwanMS released New Leaf City and the continent of Masteria.
 * Monsters Release Date: January 23, 2008 (GMT +8)
 * TaiwanMS Version 0.66

EuropeMS
EuropeMS released the CBD area of Singapore.
 * Monster Release Date: January 17, 2008 (GMT +1)
 * EuropeMS Version: 0.34

ThailandMS
ThailandMS released Korean Folk Town and the Monster Riding skill.
 * Monsters Release Date: January 16, 2008 (GMT +7)
 * ThailandMS Version 0.44