MapleStory Classic Dangerous Croko and Kerning Swamp Guide

Checked against v1.0.0 on October 29, 2026.

Dangerous Croko and the Swamp of Despair are the swamp maps outside Kerning City, and together they cover training from the late 20s to the high 50s. This MapleStory Classic Dangerous Croko guide walks the whole swamp chain, compares every map's spawns, lists each monster's stats and accuracy target, prices Tulcus's scrolls, and covers the new Murky Swamp II added at Grand Launch.

Quick summary

• One chain from Kerning City: Swamp of Despair I–III → Dangerous Croko I–II → Monkey Swamp I–III (MapleStory Quest). Each map returns to Kerning City.
• Swamp of Despair (late 20s–low 30s) is Ligator country. Map I has 41 Ligator spawns (NiaMeowDB) and is 2 portals from a shop (planet-helper).
• Monkey Swamp covers 31–45. Map I has 28 Lupins. Map III has 31 Zombie Lupins, and NiaMeowDB rates it at about 1.14 million max EXP/hr.
• Dangerous Croko II is a top 51–60 map. It has 24 Croco spawns, and planet-helper counts 31 monsters at once. NiaMeowDB says Crocos carry four-fifths of the EXP.
• Ligators and Crocos are fire weak and ice strong, so Fire/Poison Wizards do best on them. Zombie Lupins are holy weak, which suits Clerics (NiaMeowDB).

Walk the swamp chain

Step	Map	Connects to (MapleStory Quest)
1	The Swamp of Despair I	Kerning City, Swamp of Despair II
2	The Swamp of Despair II	NPC Tulcus (scroll seller); Swamp of Despair III
3	The Swamp of Despair III	Dangerous Croko I
4	Dangerous Croko I	Dangerous Croko II
5	Dangerous Croko II	Damp Tree-Forest, Monkey Swamp I
6	Monkey Swamp I → II → III	Monkey Swamp III leads to The Hermit's Cabin

The Murky Swamp is a separate branch that returns to Niora Hospital, not Kerning City (MapleStory Quest). Since Grand Launch it has two maps: The Murky Swamp I leads on to the new The Murky Swamp II, which connects to the Cabin of the Forsaken, Shade's map (NiaMeowDB, Nexon).

Potions: Dr. Faymus at the Kerning City Pharmacy sells (NiaMeowDB launch prices):

• Orange Potion 150 mesos
• White Potion 350 mesos
• Blue Potion 220 mesos
• Warrior Potion 500 mesos

NiaMeowDB counts 6 portals from Dangerous Croko II to the pharmacy and 9 from Monkey Swamp III.

Compare every swamp map

Spawns and mob rates come from MapleStory Quest. All listed monsters respawn in about 7.56 seconds. EXP per clear is our sum of every spawn's EXP.

Map	Points	Spawns	Mob rate (CoT2 → Public)	EXP per clear (ours)	Level fit
Swamp of Despair I	63	41 Ligator, 10 Jr. Necki, 9 Slime, 3 Horny Mushroom	×1.1 → ×1.0	~3,000	27–33
Swamp of Despair II	79	36 Ligator, 20 Horny Mushroom, 17 Jr. Necki, 6 Slime	×1.1 → ×1.0	~3,640	27–33
Swamp of Despair III	54	28 Ligator, 19 Jr. Necki, 7 Slime	×1.1 → ×1.0	~2,450	26–31
Dangerous Croko I	54	27 Jr. Necki, 14 Ligator, 7 Slime, 6 Croco	Unchanged	~2,830	Passing through
Dangerous Croko II	54	24 Croco, 21 Jr. Necki, 9 Slime	×1.1 → ×1.0	~4,430	50–58
Monkey Swamp I	31	28 Lupin, 3 Jr. Necki	Unchanged	~2,220	31–38
Monkey Swamp II	26	13 Zombie Lupin, 10 Lupin, 3 Jr. Necki	Unchanged	~2,020	37–41
Monkey Swamp III	42	31 Zombie Lupin, 11 Jr. Necki	Unchanged	~3,190	40–45
The Murky Swamp I	33	17 Ligator, 16 Jr. Necki	Unchanged	~1,610	27–31
The Murky Swamp II (new at Grand Launch)	26	14 Ligator, 12 Jr. Necki	×1.0	~1,280	27–31

planet-helper figures (their model):

Map	At once	EXP per clear	Clears	Portals to a shop
Swamp of Despair I	26	1,193	61 at level 28	2
Monkey Swamp I	22	1,490	93 at level 33	7
Dangerous Croko II	31	2,012	461 at level 55	6

NiaMeowDB rates Dangerous Croko II at about 1,582,500 max EXP/hr and Monkey Swamp III at about 1,138,571.

How many monsters are up at once. NiaMeowDB's spawn model fills 75% of a map's spawn points when you train alone, adds 5% for each extra player, and reaches 100% with six players. A solo character on Dangerous Croko I (54 points) sees about 41 monsters at a time; a full party sees all 54. That's why the bigger swamp maps reward party grinding more than the small Monkey Swamp maps do.

Know the swamp monsters

Monster	Lv	HP	EXP	Defense (wpn / magic)	Element	ACC to never miss	Source
Jr. Necki	21	272	39	0 / 30	None	47 at 21, 56 at 16	NiaMeowDB
Ligator	31	853	58	10 / 0	Fire weak, ice strong	70 at 31, 83 at 26	NiaMeowDB
Lupin	37	1,336	75	0 / 30	None	—	NiaMeowDB
Zombie Lupin	41	1,774	89	0 / 30	Holy weak	95 at 41, 114 at 36	NiaMeowDB
Croco	52	3,136	146	10 / 0	Fire weak, ice strong	101 at 52, 121 at 47	NiaMeowDB

Touch damage, per hit (NiaMeowDB):

• Ligator: 193–263
• Zombie Lupin: 243–331
• Croco: 296–404

Ligators and Crocos are slow and stay on their floor. Zombie Lupins are fast and jump between floors. More on hit rates is in our accuracy guide.

Match your class to the swamp

Class	Best swamp map	Why	Guide
Fire/Poison Wizard	Swamp of Despair II, then Dangerous Croko II	Ligator and Croco are fire weak with 0 magic defense	F/P Wizard guide
Cleric	Monkey Swamp III	Zombie Lupins are holy weak (NiaMeowDB). The same Zombie Lupins fill the Ellinia maps in our Monkey Forest guide	Cleric guide
Ice/Lightning Wizard	Avoid Ligators and Crocos	Both are ice strong; use lightning or go to Dangerous Valley	Perion guide
Warrior, Bowman, Thief	Monkey Swamp I–III, Dangerous Croko II	Lupins and Zombie Lupins have 0 weapon defense; Jr. Necki too	Training guide

Farm the swamp quest drops

Item	From (OSMLib reference)	Quests (MapleStory Quest)	NPC sell price
Jr. Necki Skin	Jr. Necki 40%	JM From tha Streetz (Lv 15, ×10), Luke the Security Guy (Lv 19, ×10), Dr. Faymus's Request (Lv 22, ×20), Taking Out the Alligators 1 (Lv 48, ×20)	21
Ligator Skin	Ligator 50%	Donating to Henesys and Donating to Kerning City (×30)	31
Alligator Skin Pouch	Ligator 20%	Icarus and the Balloon (Lv 31, ×10, plus 50 Tablecloth from Jr. Wraith); see our Icarus Cape quest guide	1
Cursed Doll	Zombie Lupin 40%	Rowen the Fairy's 5-step chain (Lv 36): 50 / 70 / 100 / 150 / 200	40
Croco Skin	Croco 50%	Taking Out the Alligators 2 (Lv 48, ×50)	52

Quest rewards (MapleStory Quest):

• Taking Out the Alligators 1 and 2 (Ayan, Perion): 11,800 EXP and 1,506 mesos each.
• Icarus and the Balloon: 5,530 EXP, 994 mesos and 20 Blue Potions.
• Rowen's Cursed Doll steps: 7,020 EXP and 1,140 mesos each. The first step also rolls one random 7-ore bundle (Bronze, Iron, Mithril, Adamantium, Silver or Orihalcon).

Cursed Doll math (ours): the full Rowen chain needs 570 Cursed Dolls. At the 40% reference rate, that's about 1,425 Zombie Lupin kills. Monkey Swamp III has 31 spawns and the highest Zombie Lupin density in the chain, so do it there.

Rare rolls (OSMLib reference, NiaMeowDB):

• Croco: Diamond Ore 0.1%, Elixir 0.1%
• Zombie Lupin: Orihalcon Ore 0.3%
• Ligator: The Magic Rock 0.07%

Shop at Tulcus in the Swamp of Despair II

Tulcus is a scroll seller in The Swamp of Despair II. He stocks 11 Lesser scrolls. These are NiaMeowDB's launch prices:

Scroll (Lesser)	Price
Hat Accuracy, Hat HP, Hat MP	20,000 mesos each
Topwear DEF, Bottomwear DEF, Shield DEF	20,000 mesos each
Overall Armor DEF	40,000 mesos
Shoes Evasion	40,000 mesos
Cape Weapon Def., Cape Magic Def., Cape Accuracy	40,000 mesos each

Lesser scrolls always succeed and add +1 to their stat. Tulcus is one of the few shop sources of cape scrolls on Victoria Island; our capes guide compares them with the crafted and dropped versions. He starts no quests.

Plan a 26–58 swamp route

Our plan, using the numbers above:

Level	Map	Swap to if crowded
26–33	Swamp of Despair I or II	Kerning subway Line 1; see our subway guide
31–38	Monkey Swamp I	The Burnt Land V (Perion)
39–45	Monkey Swamp III	Monkey Forest II (Ellinia)
46–50	Kerning subway Wraith maps	Florina Beach
51–58	Dangerous Croko II	Sleepy Dungeon V, Golem's Temple

Kerning Party Quest also unlocks at 21 (NiaMeowDB). See our KPQ guide.

Avoid these mistakes

1. Using ice on Ligators or Crocos. Both are ice strong.
2. Selling Croco Skins and Cursed Dolls. NPCs pay 52 and 40 mesos, and quests want 50 and 570.
3. Entering Dangerous Croko II too early. You need 121 accuracy at 47 to never miss.
4. Hunting the Murky Swamp from Kerning City. Both Murky Swamp maps return you to Niora Hospital instead.
5. Skipping Jr. Neckis when you're doing Ayan's quests. Taking Out the Alligators 1 needs 20 skins.

If you're making alts or coming back

• Thief alts start in Kerning City, so the swamps are their natural 26–45 path.
• Wizard alts: take the fire branch for this chain, or plan around Monkey Swamp.
• Returning players: Croco is level 52 in Classic World, with 3,136 HP and 146 EXP (NiaMeowDB). Don't rely on old numbers.
• Meso farmers: Croco Skins and the rare ore rolls are covered in our 50–75 meso farming guide, and Ligators in the 30–45 meso farming guide.

Want a hand with this?

If you would rather not grind this part yourself, MapleStory Classic powerleveling services are listed on FullBoosts. Read Nexon's Terms of Service before you buy any service from anyone, FullBoosts included — a marketplace listing isn't publisher permission.

What changed in the swamps at Grand Launch

Nexon's Grand Launch maintenance notes for v1.0.0 (October 21, 2026) include three swamp changes:

Change	Detail
The Murky Swamp II added	A second Ligator and Jr. Necki map (26 spawn points) between The Murky Swamp I and the Cabin of the Forsaken (NiaMeowDB)
Murky Swamp rope fixed	The rope to the top-right platform in The Murky Swamp can now be climbed
More potion drops from monsters Lv 10–30	Applies to Jr. Neckis (Lv 21) only; Ligators are Lv 31

The Cabin of the Forsaken holds Shade (Lv 48), one of the six challenge bosses Nexon lists in its Grand Launch release notes; our Shade guide covers the unlock quest. Windia now has 40 channels, which helps on the busy Dangerous Croko II and Monkey Swamp III. Every swamp monster is Lv 10 or higher, so all of them can drop Halloween Candies for Malady's event until November 18 (Nexon). Crafting still stops at craft level 8, and Orbis and 3rd job are still closed. The MapleStory Classic hub lists every guide for the game.

Frequently asked questions

Where is Dangerous Croko in MapleStory Classic? Past the Swamp of Despair, outside Kerning City. Go through Swamp of Despair I–III, then Dangerous Croko I and II (MapleStory Quest).

What level is Dangerous Croko II for? The low-to-mid 50s. Crocos are level 52, and planet-helper lists the map for 51–60.

What is the best Swamp of Despair map? Swamp of Despair II has the most points (79) and the highest EXP per clear by our math. Map I is closest to a shop (planet-helper).

Where do you farm Cursed Dolls? Monkey Swamp III, with 31 Zombie Lupin spawns. The Rowen chain needs 570 in total (MapleStory Quest).

Which class is best for Crocos? Fire/Poison Wizards. Crocos are fire weak and have 0 magic defense (NiaMeowDB).

What does Tulcus sell? Eleven Lesser scrolls for hats, armor, shoes, shields and capes, at 20,000 or 40,000 mesos each (NiaMeowDB launch prices).

Where is The Murky Swamp II? Past The Murky Swamp I, reached from Niora Hospital. Nexon added it at Grand Launch, and it leads to the Cabin of the Forsaken where Shade spawns (NiaMeowDB).

Are the swamp maps good for party grinding? Swamp of Despair II (79 points) and Dangerous Croko II (24 Crocos) have the most room. Split floors so a fire mage takes the Ligators or Crocos while physical attackers clear Jr. Neckis, since those have 0 weapon defense.

Related guides

• MapleStory Classic Kerning Subway guide
• MapleStory Classic Monkey Forest guide
• MapleStory Classic Kerning City guide
• MapleStory Classic Shade guide
• MapleStory Classic launch changes
• MapleStory Classic training guide 1–70
• MapleStory Classic hub