MapleStory Quest
In development
Spare a meso?

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.

Skills73 new · page 6 of 10

New 73Changed 65Removed 3

Almost all of the additions are 3rd job, which arrived with the second test. The revisions are where a skill you already had changed under you.

Lightning Charge

CoT2: From Closed Online Test 2 (Beta 2). Not in the Grand Launch; kept here as a record.White Knight (3rd Job)#1211003

[Master Level: 30] Imbues your sword or blunt weapon with the Lightning element for a set duration to increase its power, granting a chance to electrocute enemies to stun them. Deals increased damage to lightning-weak enemies, but deals reduced damage to lightning-resistant enemies and cannot electrocute them. The effect is removed immediately if you equip a different weapon type or use a charge skill of a different element, and has a chance to be removed when using Charge Blow.

Max Level30
Duration90s - 5 min

30 skill levels

Meso Explosion

CoT2: From Closed Online Test 2 (Beta 2). Not in the Grand Launch; kept here as a record.Chief Bandit (3rd Job)#4211004

[Master Level: 30] Explodes the mesos dropped on the ground around you to attack monsters. The mesos from the monsters killed by someone else will not be able to be used for this. Required Skill : At least Level 3 on Pickpocket

Max Level30
Monsters Hit10-15

30 skill levels

Meso Guard

CoT2: From Closed Online Test 2 (Beta 2). Not in the Grand Launch; kept here as a record.Chief Bandit (3rd Job)#4211000

[Master Level: 20] While active, use Meso to block a portion of incoming damage. The effect is deactivated if you lack the required Meso. The effect is activated when used and deactivated when used again. Required Skill : At least Level 3 on Chakra

Max Level20

20 skill levels

Meso Saver

CoT2: From Closed Online Test 2 (Beta 2). Not in the Grand Launch; kept here as a record.Hermit (3rd Job)#4111000

[Master Level: 20] Protects yourself with Meso. While the effect is active, it prevents death once when in critical danger and recovers a certain amount of HP. Required Skill: At least Level 5 on Claw Guard

Max Level20
Cooldown45 min
Duration10 min - 20 min
ConsumesThe Magic Rock

20 skill levels

Mortal Blow

CoT2: From Closed Online Test 2 (Beta 2). Not in the Grand Launch; kept here as a record.Ranger (3rd Job)#3110000

[Master Level: 20] Enables shooting arrows at a very close range with a certain success rate. May instantly kill a monster with a single shot, but Bosses cannot be instantly killed.

Max Level20
Monsters Hit1
Ammo per Use1

20 skill levels

Mortal Blow

CoT2: From Closed Online Test 2 (Beta 2). Not in the Grand Launch; kept here as a record.Sniper (3rd Job)#3210000

[Master Level: 20] Enables shooting arrows at a very close range with a certain success rate. May instantly kill a monster with a single shot, but Bosses cannot be instantly killed.

Max Level20
Monsters Hit1
Ammo per Use1

20 skill levels

Mystic Door

CoT2: From Closed Online Test 2 (Beta 2). Not in the Grand Launch; kept here as a record.Priest (3rd Job)#2311001

[Master Level: 20] Use a Magic Rock to create a portal leading to the nearest town. Only party members can use it multiple times until the portal disappears, and it can be accessed by pressing the up arrow key while standing on it. Required Skill: At least Level 3 on Dispell

Max Level20
Duration40s - 3 min
Consumes1-2 × The Magic Rock

20 skill levels

Panic

CoT2: From Closed Online Test 2 (Beta 2). Not in the Grand Launch; kept here as a record.Crusader (3rd Job)#1111001

[Master Level: 30] Consume combo count to attack a single enemy with a sword or an axe, with a certain chance to inflict Darkness and decrease the enemy's accuracy. The power of the attack increases based on the number of Combo Counts consumed. Required Skill: At least Level 1 on Combo Attack

Max Level30
Monsters Hit1
Duration5s - 9s

30 skill levels