LocationOther
Monsters800018
Return MapForgotten Hollow
BGMBgm03/CavernOfShadows
Mob Rate×0.1
Map MarkForgottenHollow
Closed Online Test 2 → Public Release
MapleStory Classic World client changelog: Closed Online Test 2 to Public Release
Read from the client: the Public Release of 6 October 2026 against Closed Online Test 2 of 11 August 2026, 2,795 additions, 366 removals and 800 revisions. New: Orange Slime and Shade, 6 maps, 309 items with the furniture for two new homes among them, 53 quests and 52 hairstyles and faces. Removed: Ossyria and 3rd job, with 97 monsters, 127 maps, 70 skills and 59 quests, each kept on this site marked CoT2.
The lists, one page each: 309 new items · 2 new monsters · 6 new maps · 53 new quests · everything removed (353). What the release dropped keeps its pages here, 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. What the release left out of the second test is not missed but listed under Removed: Ossyria and 3rd job among it, which Nexon held back for later. This site keeps their 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 6 October 2026. More on the sources.
Maps127 removed · page 7 of 8
New 6Changed 111Removed 127All 92 maps of Ossyria are gone, and 32 of Forgotten Hollow’s 33 with them, along with two developer test rooms and an old copy of Victoria Road: 127 in all. The one Forgotten Hollow map the release kept, Someone Else’s Grave, lost its name in it. The six new ones are on Victoria Island, Shade’s cabin among them. 103 of the 111 revised maps changed their mob rate, 65 down and 38 up.
CoT2: From Closed Online Test 2 (Beta 2). Not in the Grand Launch; kept here as a record.Removed in the Public Release. This site keeps them, marked CoT2, and a row links to its page where it has one.
LocationOther
Return MapForgotten Hollow
BGMBgm03/CavernOfShadows
Mob Rate×1.5
Map MarkForgottenHollow
LocationOther
Monsters800018
Return MapForgotten Hollow
BGMBgm03/CavernOfShadows
Mob Rate×0.1
Map MarkForgottenHollow
Unnamed #80003500
CoT2: From Closed Online Test 2 (Beta 2). Not in the Grand Launch; kept here as a record.ForgottenHollowLocationOther
MonstersZombie Mushroom (Lv.24)Rotten Mushmom (Lv.60)Curse Eye (Lv.29)Evil Eye (Lv.30)Blue Mushroom (Lv.30)Zombie Mushmom (Lv.55)
BGMBgm03/BygoneGarden
Mob Rate×1.5
Map MarkForgottenHollow
LocationOther · Yellow Mushroom House
Connects ToHenesys
Return MapHenesys
BGMBgm00/FloralLife
Map MarkHenesys
Another Sanctuary
CoT2: From Closed Online Test 2 (Beta 2). Not in the Grand Launch; kept here as a record.ForgottenHollow#10006162LocationVictoria Island · Deep Passage
Return MapForgotten Hollow
BGMBgm03/CavernOfShadows
Mob Rate×1.3
Map MarkForgottenHollow
Bygone Days
CoT2: From Closed Online Test 2 (Beta 2). Not in the Grand Launch; kept here as a record.TownForgottenHollow#10006152LocationVictoria Island · Deep Passage
Connects ToSomeone Else's Grave
Return MapForgotten Hollow
BGMBgm03/CavernOfShadows
Map MarkForgottenHollow
Cave Fairy Department Store
CoT2: From Closed Online Test 2 (Beta 2). Not in the Grand Launch; kept here as a record.TownForgottenHollow#10006002LocationVictoria Island · Shallow Passage
NPCsLumaCoT2: From Closed Online Test 2 (Beta 2). Not in the Grand Launch; kept here as a record.Cave Fairy's StorageCoT2: From Closed Online Test 2 (Beta 2). Not in the Grand Launch; kept here as a record.
Return MapForgotten Hollow
BGMBgm03/BygoneGarden
Map MarkForgottenHollow
Cave Fairy Sanctuary
CoT2: From Closed Online Test 2 (Beta 2). Not in the Grand Launch; kept here as a record.TownForgottenHollow#10006001LocationVictoria Island · Shallow Passage
NPCsZelyaCoT2: From Closed Online Test 2 (Beta 2). Not in the Grand Launch; kept here as a record.MyenCoT2: From Closed Online Test 2 (Beta 2). Not in the Grand Launch; kept here as a record.
Return MapForgotten Hollow
BGMBgm03/BygoneGarden
Map MarkForgottenHollow
Collision of Ice and Fire
CoT2: From Closed Online Test 2 (Beta 2). Not in the Grand Launch; kept here as a record.ForgottenHollow#10006022LocationVictoria Island · Hidden Street
Connects ToPrimeval Forest IICoT2: From Closed Online Test 2 (Beta 2). Not in the Grand Launch; kept here as a record.Forgotten Dungeon TunnelCoT2: From Closed Online Test 2 (Beta 2). Not in the Grand Launch; kept here as a record.
Return MapForgotten Hollow
BGMBgm03/BygoneGarden
Mob Rate×0.6
Map MarkForgottenHollow
Decayed Tunnel I
CoT2: From Closed Online Test 2 (Beta 2). Not in the Grand Launch; kept here as a record.ForgottenHollow#10006120LocationVictoria Island · Deep Passage
Connects ToSomeone Else's GravePerilous Descent IIICoT2: 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.
Return MapForgotten Hollow
BGMBgm03/CavernOfShadows
Map MarkForgottenHollow
Decayed Tunnel II
CoT2: From Closed Online Test 2 (Beta 2). Not in the Grand Launch; kept here as a record.ForgottenHollow#10006130LocationVictoria Island · Deep Passage
Connects ToDecayed Tunnel IIICoT2: From Closed Online Test 2 (Beta 2). Not in the Grand Launch; kept here as a record.Decayed Tunnel ICoT2: From Closed Online Test 2 (Beta 2). Not in the Grand Launch; kept here as a record.
Return MapForgotten Hollow
BGMBgm03/CavernOfShadows
Mob Rate×1.5
Map MarkForgottenHollow
Decayed Tunnel III
CoT2: From Closed Online Test 2 (Beta 2). Not in the Grand Launch; kept here as a record.ForgottenHollow#10006140LocationVictoria Island · Deep Passage
Connects ToDecayed Tunnel IICoT2: 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.
Return MapForgotten Hollow
BGMBgm03/CavernOfShadows
Mob Rate×0.6
Map MarkForgottenHollow
Dilapidated Tomb
CoT2: From Closed Online Test 2 (Beta 2). Not in the Grand Launch; kept here as a record.ForgottenHollow#10006161LocationVictoria Island · Deep Passage
Connects ToAnother SanctuaryCoT2: From Closed Online Test 2 (Beta 2). Not in the Grand Launch; kept here as a record.Precipice of DarknessCoT2: From Closed Online Test 2 (Beta 2). Not in the Grand Launch; kept here as a record.
Return MapForgotten Hollow
BGMBgm03/CavernOfShadows
Mob Rate×1.1
Map MarkForgottenHollow
Forbidden Entrance
CoT2: From Closed Online Test 2 (Beta 2). Not in the Grand Launch; kept here as a record.ForgottenHollow#10006080LocationVictoria Island · Shallow Passage
Connects ToPerilous Descent ICoT2: From Closed Online Test 2 (Beta 2). Not in the Grand Launch; kept here as a record.The End of Fleeting LightCoT2: From Closed Online Test 2 (Beta 2). Not in the Grand Launch; kept here as a record.
Return MapForgotten Hollow
BGMBgm03/BygoneGarden
Mob Rate×0.7
Map MarkForgottenHollow
Forgotten Dungeon Tunnel
CoT2: From Closed Online Test 2 (Beta 2). Not in the Grand Launch; kept here as a record.ForgottenHollow#10006071LocationVictoria Island · Shallow Passage
Connects ToThe Faded CanopyCoT2: From Closed Online Test 2 (Beta 2). Not in the Grand Launch; kept here as a record.Sleepy Dungeon VCollision of Ice and FireCoT2: From Closed Online Test 2 (Beta 2). Not in the Grand Launch; kept here as a record.
Return MapForgotten Hollow
BGMBgm03/BygoneGarden
Mob Rate×0.7
Map MarkForgottenHollow