MapleStory Quest
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Closed Online Test 1 → Closed Online Test 2

MapleStory Classic World client changelog: Closed Online Test 1 to Closed Online Test 2

BuildGrand LaunchPublic ReleaseClosed Online Test 2+1,155 added~2,335 changed-853 removed
What changed in the game files between the two closed tests, 21 April 2026 and 4 August 2026. Kept for the record: the site is built from the Grand Launch now, and what the second test had that the release does not is marked CoT2: From Closed Online Test 2 (Beta 2). Not in the Grand Launch; kept here as a record..
About this page

What it is

Two client exports compared field by field, not Nexon’s patch notes, so it shows changes nobody announced. It can’t say why something changed: a typo fix and a rebalance look the same.

What it misses

Drop rates, shop stock and quiz answers live on the server, so they never show up here. Some of what arrived, like Orbis and 3rd job, was held back from the Public Release; this site keeps those pages, marked CoT2.

Closed Online Test 2 is dated 4 August at the end of the older diff and 11 August at the start of the newer one, and both are right: the first was made from the build the test opened on, the second from the one its 11 August balance maintenance left. What that maintenance changed (Rush’s cooldown went from 3 seconds to 1, for one) is in neither diff.

From the OSMS Data Explorer datamine of 5 August 2026. More on the sources.

Monsters80 changed · page 1 of 5

New 104Changed 80Removed 0

The changes most likely to have been felt while playing. Accuracy, HP, attack and knockback were all retuned, and every monster keeps its own row.

Fairy 3

#27
BaseLv.29 · HP 593 · MP 175 · EXP 54
HP605593
P.ATK103127
ACC120116
AVOID1920
KB300200
Elements-Holy StrongLightning StrongPoison Weak
Self Buffsid 112level 1name Defense Buff (AOE)x 85time 30interval 10id 165level 1name Skill 165x 25time 30interval 10
Debuffsid 121level 1name Darknesstime 6interval 60prop 50id 121level 1name Darknessx 50time 6interval 60prop 50

Mano

Boss#700004
BaseLv.20 · HP 7,420 · MP 30 · EXP 148
HP7,5607,420
P.ATK101252
M.DEF3010
ACC10197
AVOID89
KB11,400
Self Buffsid 112level 1name Defense Buff (AOE)x 85time 30interval 10id 113level 1name Magic Defense Buff (AOE)x 85time 30interval 10id 165level 1name Skill 165x 25time 30interval 10id 167level 1name Skill 167x 25time 30interval 10
Spawn Maps
Pig TownShortcut

Tauromacis

#52
BaseLv.70 · HP 9,328 · MP 120 · EXP 300
HP5,6109,328
P.ATK580386
P.DEF4025
M.ATK871386
M.DEF-5
AVOID3139
KB1,5001,425
ElementsPoison ImmuneLightning StrongIce Weak

Taurospear

#53
BaseLv.75 · HP 12,535 · MP 150 · EXP 350
HP6,25812,535
P.ATK698410
P.DEF05
M.ATK1,047410
M.DEF4025
AVOID3547
KB1,5001,575
ElementsPoison ImmuneFire StrongLightning StrongLightning StrongIce Weak

Iron Hog

#24
BaseLv.28 · HP 572 · MP 50 · EXP 52
HP583572
MP-50
P.ATK112136
ACC106104
AVOID1517
Elements-Lightning Weak
Self Buffsid 100level 1name Attack Buffx 115time 30interval 40id 160level 1name Skill 160x 25time 30interval 40

Jr. Boogie 2

#34
BaseLv.35 · HP 1,395 · MP 300 · EXP 74
HP1,4601,395
P.ATK134154
ACC129125
AVOID2225
KB500300
Elements-Poison Strong
Debuffsid 121level 1name Darknesstime 6interval 60prop 50id 122level 1name Weaknesstime 4interval 60prop 50id 121level 1name Darknessx 50time 6interval 60prop 50id 122level 1name Weaknesstime 4interval 60prop 50

Malady

#47
BaseLv.55 · HP 2,998 · MP 90 · EXP 175
HP3,1582,998
P.ATK270226
M.ATK100311
ACC135146
AVOID3132
KB1325
ElementsHoly WeakFire StrongIce StrongHoly Weak

Mushmom

Boss#700000
BaseLv.40 · HP 34,440 · MP 200 · EXP 376
HP36,66034,440
P.ATK403532
P.DEF1015
M.ATK403585
M.DEF1015
ACC129130
KB1,5002,750

Myewood

#61
BaseLv.54 · HP 3,924 · MP 120 · EXP 168
HP4,1523,924
P.ATK360306
M.ATK539306
ACC129118
AVOID2827
KB500825
Spawn Maps
Decayed Tunnel IIICoT2: From Closed Online Test 2 (Beta 2). Not in the Grand Launch; kept here as a record.Lingering RegretCoT2: From Closed Online Test 2 (Beta 2). Not in the Grand Launch; kept here as a record.Perilous Descent ICoT2: From Closed Online Test 2 (Beta 2). Not in the Grand Launch; kept here as a record.Perilous Descent IICoT2: From Closed Online Test 2 (Beta 2). Not in the Grand Launch; kept here as a record.Perilous Descent IIICoT2: From Closed Online Test 2 (Beta 2). Not in the Grand Launch; kept here as a record.

Rafflesia

#59
BaseLv.47 · HP 2,285 · MP 80 · EXP 127
HP2,4522,285
P.ATK257248
ACC136126
AVOID2728
KB135225
ElementsFire WeakPoison StrongPoison StrongIce StrongFire Weak
Spawn Maps
Collision of Ice and FireCoT2: From Closed Online Test 2 (Beta 2). Not in the Grand Launch; kept here as a record.Decayed Tunnel IICoT2: From Closed Online Test 2 (Beta 2). Not in the Grand Launch; kept here as a record.Decayed Tunnel IIICoT2: From Closed Online Test 2 (Beta 2). Not in the Grand Launch; kept here as a record.ShortcutPrimeval Forest ICoT2: From Closed Online Test 2 (Beta 2). Not in the Grand Launch; kept here as a record.Primeval Forest IICoT2: From Closed Online Test 2 (Beta 2). Not in the Grand Launch; kept here as a record.Primeval Forest IIICoT2: From Closed Online Test 2 (Beta 2). Not in the Grand Launch; kept here as a record.Forgotten Entrance ICoT2: From Closed Online Test 2 (Beta 2). Not in the Grand Launch; kept here as a record.