MapleStory Quest

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.

Monsters104 new · page 3 of 6

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.

Tick-Tock

CoT2: From Closed Online Test 2 (Beta 2). Not in the Grand Launch; kept here as a record.#1030
BaseLv.40 · HP 1,722 · EXP 94
CombatP.ATK 237 · P.DEF 10 · M.DEF 20 · ACC 120 · AVOID 24 · Speed -60 · KB 175
ElementsPoison: StrongLightning: Weak

Mateon

CoT2: From Closed Online Test 2 (Beta 2). Not in the Grand Launch; kept here as a record.#1035
BaseLv.41 · HP 1,951 · MP 80 · EXP 99
CombatP.ATK 242 · P.DEF 20 · M.ATK 242 · M.DEF 10 · ACC 133 · AVOID 22 · Speed -40 · KB 175
ElementsLightning: StrongPoison: Weak

Platoon Chronos

CoT2: From Closed Online Test 2 (Beta 2). Not in the Grand Launch; kept here as a record.#1034
BaseLv.41 · HP 1,774 · MP 80 · EXP 99
CombatP.ATK 221 · P.DEF 5 · M.ATK 242 · M.DEF 25 · ACC 133 · AVOID 28 · Speed -15 · KB 175
TraitsUndead

Robo

CoT2: From Closed Online Test 2 (Beta 2). Not in the Grand Launch; kept here as a record.#1033
BaseLv.41 · HP 1,951 · EXP 99
CombatP.ATK 242 · P.DEF 20 · M.DEF 10 · ACC 121 · AVOID 22 · Speed -40 · KB 175
ElementsPoison: StrongLightning: Weak

Block Golem

CoT2: From Closed Online Test 2 (Beta 2). Not in the Grand Launch; kept here as a record.#1037
BaseLv.42 · HP 2,740 · EXP 103
CombatP.ATK 247 · P.DEF 25 · M.DEF 5 · ACC 108 · AVOID 22 · Speed -60 · KB 525
ElementsLightning: StrongIce: StrongFire: Weak

Nependeath

CoT2: From Closed Online Test 2 (Beta 2). Not in the Grand Launch; kept here as a record.#1036

Zeta Gray

CoT2: From Closed Online Test 2 (Beta 2). Not in the Grand Launch; kept here as a record.#1038
BaseLv.42 · HP 1,644 · MP 80 · EXP 103
CombatP.ATK 225 · P.DEF 10 · M.ATK 247 · M.DEF 20 · ACC 133 · AVOID 28 · KB 175

Master Robo

CoT2: From Closed Online Test 2 (Beta 2). Not in the Grand Launch; kept here as a record.#1041
BaseLv.44 · HP 2,134 · EXP 112
CombatP.ATK 257 · P.DEF 20 · M.DEF 10 · ACC 123 · AVOID 23 · Speed -30 · KB 175
ElementsPoison: StrongLightning: Weak

Plateon

CoT2: From Closed Online Test 2 (Beta 2). Not in the Grand Launch; kept here as a record.#1040
BaseLv.44 · HP 1,940 · MP 80 · EXP 112
CombatP.ATK 234 · P.DEF 20 · M.DEF 10 · ACC 135 · AVOID 23 · KB 175
ElementsLightning: StrongPoison: Weak

King Block Golem

CoT2: From Closed Online Test 2 (Beta 2). Not in the Grand Launch; kept here as a record.#1043
BaseLv.45 · HP 3,244 · EXP 117
CombatP.ATK 262 · P.DEF 25 · M.DEF 5 · ACC 111 · AVOID 24 · Speed -40 · KB 675

Ultra Gray

CoT2: From Closed Online Test 2 (Beta 2). Not in the Grand Launch; kept here as a record.#1044
BaseLv.46 · HP 2,003 · MP 100 · EXP 122
CombatP.ATK 243 · P.DEF 10 · M.ATK 267 · M.DEF 20 · ACC 137 · AVOID 30 · KB 225
ElementsLightning: Strong

Mecateon

CoT2: From Closed Online Test 2 (Beta 2). Not in the Grand Launch; kept here as a record.#1046
BaseLv.48 · HP 2,350 · MP 80 · EXP 132
CombatP.ATK 277 · P.DEF 20 · M.ATK 277 · M.DEF 10 · ACC 139 · AVOID 28 · Speed -50 · KB 225
ElementsPoison: StrongLightning: Weak

Master Chronos

CoT2: From Closed Online Test 2 (Beta 2). Not in the Grand Launch; kept here as a record.#1047
BaseLv.49 · HP 2,416 · MP 80 · EXP 137
CombatP.ATK 257 · P.DEF 5 · M.ATK 282 · M.DEF 25 · ACC 140 · AVOID 32 · Speed -10 · KB 225
TraitsUndead