ChronoRO Instances

ChronoRO features a wide variety of Memorial Dungeons and Instances spanning multiple episodes of Ragnarok Online. These instances provide classic and modern challenges, story-driven content, and valuable rewards for both solo players and parties.

This page lists the instances currently available on the server and links to guides where documentation is already available. Not all instances have full guides yet — new documentation will be added over time.

Instance List

Instance	Description / Episode
✈️ Airship Assault	Memorial Dungeon from Episode 14.3
🌊 Abyss Lake 04	Quest guide for Abyss Lake 04
🏥 Bangungot Hospital F2	Episode 14.3 instance walkthrough
🐉 Bakunawa Lake	Episode 14.3 instance
🦑 Buwaya Cave	“Secret in the Woods” instance – Episode 14.3
🏛️ Central Lab	Central Laboratory instance walkthrough
🤖 Charleston Crisis	Episode 15.1 Memorial Dungeon
🔒 Cor Operation	Episode 17.1 – securing Elyumina
😈 Devil's Tower	Episode 14.2 dungeon
🌌 Eclage Interior	Episode 14.2 – Mayor Shenime storyline
🌙 Edda: Half Moon in the Daylight	Episode 16.1
🏰 Endless Tower	Episode 12 – classic challenge tower
🏰 Edda Biolabs	Episode 17.2 advanced instance
🐍 Faceworm Nest	Episode 14.3
🎲 Friday Memorial Dungeon	Weekly dungeon (Lv. 130+)
🎲 Fall of Glastheim	Story instance about Glastheim’s downfall
🎩 Geffen Magic Tournament	Episode 15.2
👻 Ghost Palace	Episode 14.1
💘 Heart Hunter War Base	Episode 16.2
🌲 Hazy Forest	Episode 14.2 – Wandering Guardian quest
🌼 Hidden Flower Garden	Episode 17.2
🎃 Horror Toy Factory	Episode 14.2
💫 Infinite Space	Episode 16.1 – Normal & Hard modes
🏝️ Isle of Bios	Memorial Dungeon related to Morocc
🏝️ Illusion of Labyrinth	Quest starts in prt_maze01
🏡 Lost Farm in Time	Episode 17.2
🐟 Malangdo Culvert	Normal & Hard modes, daily & weekly quests
⛏️ Morse Cave	Episode 14.1
🐉 Nidhoggur’s Nest	Episode 13.3
🦇 Nightmarish Jitterbug	Episode 14.3
🐙 Octopus Cave	Disgusting Octopus boss
🕰️ Old Glast Heim	Episode 14.1
🕰️ Old Glast Heim Challenge	Episode 17.1
🧙 Orc’s Memory	Orc Dungeon Memorial
📜 OS Occupation Operation	Episode 17.1 – 2nd OS Search
📜 Ancient Odin’s Temple	High-level Episode 17.1 dungeon
🍬 Poring Village	Reward-focused instance
🔬 Regenschirm	Episode 17.1
🔮 Room of Consciousness	Episode 15.1
👩‍👧 Sara’s Memory	Episode 14.1
🐺 Sarah and Fenrir	Episode 14.3 – time travel instance
🔥 Sealed OS	Episode 17.1
🔥 Sunken Tower	Memorial Dungeon
🏯 Sealed Shrine	Shrine challenge instance
⚔️ Sky Fortress	Episode 16.2
🧩 Temple of the Demon God	Episode 16.2
🧩 The Last Room	Mark, Verity & Tamarin encounter
🛡️ Memories of Thanatos	Revamped Thanatos Tower
🌼 Tomb of Remorse	Hidden dungeon
🛡️ Garden of Time	Memorial Dungeon
🛡️ Clock Tower – Unknown Basement	Hidden Clock Tower depths

Notes

Some instances may have level or party requirements
Reward structure varies by difficulty and episode
Additional instance guides will be added progressively

List of Instances

Instance	Level Required	Party Count	Cooldown	Navigation	Prerequisite	Possible Rewards
Octopus Cave	1	1+	1 Hour	`/navi mal_dun01 151/235`	Octopus Hunting Stick	Experience
Hazy Forest	1	1+	3 Hours	`/navi bif_fild01 158/340`	-	Mora Coin
Volcanic Island Korodo	30	1	1 Day	`/navi comodo 264/123`	-	Golden Corn Red Hot Marble
Poring Village	30-60	1+	1 Day	`/navi prt_fild05 145/235`	-	Poring Village Leek Poring Village Carrot
Sunken Tower	40	1+	3 Days	`/navi alberta 214/74`	-	Meteorite Dust Experience
Orc's Memory	60	1+	1 Day	`/navi gef_fild10 242/202`	-	Ring of Fallen
Weekend Memorial	60	1+	1 Day	`/navi pay_arche 44/124`	Weekend Only	Minor Growth Potion Minor Growth JPotion
Old Glast Heim (Beginner)	65	1+	3 Days	`/navi glast_01 196/235`	-	Coagulated Spell
Nidhoggur's Nest	70	2+	3 Days	`/navi nyd_dun02 100/201`	Guardian of Yggdrasil	Nidhoggur's Shadow Garb [1] Cardo [1]
Horror Toy Factory (Beginner)	70	1+	3 Days	`/navi xmas 232/290`	-	Bloody Coin
Sealed Shrine	75	2+	12 Hours	`/navi monk_test 309/146`	-	Cursed Baphomet Doll Tae Goo Lyeon [2]
Wolfchev's Laboratory	80	1+	3 Days	`/navi lhz_dun04 152/276`	Dangerous Rumors	Advanced Weapon Box Ancient Gold Deco [1]
Endless Tower (No Longer Available on kRO)	80	1+	1 Week	`/navi alberta 214/77`	-	Twin Edge of Naght Sieger [3] Violet Fear [2]
Half-Moon in the Daytime (Easy)	80	1	1 Day	`/navi rachel 174/138`	-	Priest's Necklace Fragment of Dreams
Underground Drainage (Normal)	90	1+	1 Day	`/navi mal_in01 160/34`	Seagod's Protection	Advanced Weapon Box Seagod's Anger
Geffen Magic Tournament	90	1	1 Day	`/navi dali 98/141`	-	Geffen Magic Contest Coin
Sarah's Memory	99	1+	1 Day	`/navi dali 130/107`	-	Experience
Friday Dungeon	99	1+	1 Week	`/navi gef_tower 57/170`	Friday Only	Crafted Stone Royal Guard Ring [1]
Infinite Space	100	1+	3 Hours	`/navi cmd_fild07 58/278`	-	Shatter Magic Stone
Room of Consciousness	100	1	1 Day	`/navi prt_lib_q 91/85`	The Royal Banquet	Honor Token
Bangungot's Hospital	100	1+	1 Week	`/navi ma_dun01 147/10`	Nurse in Port Malaya	Bangungot Doll Piece of Bangungot's Spirit
Heart Hunter War Base 2	100	1+	1 Day	`/navi ein_fild04 281/337`	Terra Gloria	Sealed Magic Sword [2] Sealed Evil Sword [2] Sealed Maximum Sword [2]
Werner Laboratory Central Room	100	1+	1 Day	`/navi slabw01 236/91`	Terra Gloria	Ultralight Magic Shield [1] Schwartz's Honor Token
OS 2nd Mission	110	1+	1 Day	`/navi sp_cor 160/55`	Episode 17.1	Cor Core Damaged Weapon Unknown Parts
Cor Memorial	110	1+	1 Day	`/navi sp_cor 113/130`	Episode 17.1	Cor Core Damaged Weapon Unknown Parts
Dreams and Shadows (Nightmarish Jitterbug Rework)	120	1+	1 Day	`/navi dali02 111/95`	-	Tooth Of Jitterbug
Ghost Palace	120	1	1 Day	`/navi dali02 43/129`	-	Gray Shard Thanatos Weapons Gray Equipment
Airship Raid	125	1+	1 Day	`/navi dali02 136/79`	-	Airship Equipment Felrock Equipment
King's Heel (Charleston Crisis Rework)	130	1+	1 Day	`/navi verus04 73/114`	-	Charleston Component Huge Metal Scrap Old Fuel Tank Gold Card
Old Glast Heim (Normal)	130	1+	1 Day	`/navi glast_01 204/273`	-	Coagulated Spell Temporal Crystal
EDDA: Fall of Glast Heim (Normal)	130	1+	1 Day	`/navi glast_01 241/290`	-	Curse-eroded Crystal Curse-eroded Gemstone King Schmidt's Suit [1] King Schmidt's Manteau [1] Temporal Stat Manteaus [1]
Half-Moon in the Daytime (Hard)	130	1	1 Day	`/navi rachel 174/138`	-	Priest's Necklace Fragment of Dreams
Devil's Tower	130	1+	1 Day	`/navi dali02 134/119`	-	Evil Slayer Weapons
Buwaya Extermination	130	1+	1 Day	`/navi ma_fild02 311/317`	Secret in the Woods	Buwaya Doll Piece of Buwaya's Spirit
17.2 Garden Maze (Normal)	130	1+	1 Day	`/navi ba_maison 238/44`	Episode 17.2	Barmil Ticket
17.2 Pitaya	130	1+	1 Day	`/navi ba_maison 311/206`	Episode 17.2	Barmil Ticket
17.2 Lamda (Normal)	130	1+	1 Day	`/navi ba_maison 120/321`	Episode 17.2	Barmil Ticket
17.2 Sweety	130	1+	1 Day	`/navi ba_in01 32/250`	Episode 17.2	Barmil Ticket
Central Laboratory	140	1+	1 Day	`/navi verus01 149/155`	Phantasmagorika	Random MVPs
Bakonawa Extermination	140	1+	1 Week	`/navi ma_scene01 174/179`	Bakonawa Extermination Quest	Bakonawa Doll Piece of Bakonawa's Spirit
Underground Drainage (Nightmare)	140	1+	1 Day	`/navi mal_in01 160/34`	Seagod's Protection	Advanced Weapon Box Seagod's Anger
Faceworm's Nest	140	1+	1 Day	`/navi dali02 80/60`	-	Giant Faceworm Snake Skin [1] Faceworm Queen Leg [2]
Horror Toy Factory	140	1+	1 Day	`/navi xmas 134/119`	-	Bloody Coin Christmas Guardian Tree [1] Hurt Mind [1] Kind Heart [1] Noble Cross [1] Evil Spirit Glove [1] Old Parasol [3] Red Lantern [1] Lush Rose [1] Celine's Brooch [1] Celine's Ribbon [1]
Sky Fortress	145	1+	3 Days	`/navi prt_q 249/79`	The Royal Banquet	Lindy Hop [2] Juliette D Rachel [2] Sunflower Boy [2] Vicious Mind Weapons
Sarah and Fenrir	145	1+	1 Week	`/navi dali02 97/142`	-	Shard of Gigantes
The Last Room	150	1+	1 Day	`/navi un_myst 163/38`	Looking for the Traces	Runaway Chip [1] Broken Chip 01 [1] Broken Chip 02 [1]
Old Glast Heim (Advanced)	160	1+	3 Days	`/navi glast_01 204/273`	-	Contaminated Magic Temporal Crystal
Isle of Bios	160	1+	1 Day	`/navi moro_cav 45/60`	Dimensional Travel	Token of Hero
Morse's Cave	160	1+	1 Day	`/navi moro_cav 61/69`	Isle of Bios	Token of Hero
Temple of Demon God	160	1+	1 Day	`/navi moro_cav 41/73`	Morse's Cave	Darklord Soulpiece Darklord Essence
EDDA: Fall of Glast Heim (Advanced)	170	1+	3 Days	`/navi glast_01 241/290`	-	Curse-eroded Crystal Curse-eroded Gemstone Temporal Stat Armors [1] King Schmidt's Stat Insignias [1]
EDDA: Bioresearch Laboratory	170	1+	1 Day	`/navi yuno 216/345`	-	Somatology Experimental Fragment Somatology Research Document Ancient Hero Weapon Box Specimen Weapon Box Biological Research Box Biological Experiment Box
Old Glast Heim (Challenge Mode)	170	1+	3 Days	`/navi glast_01 143/288`	Old Glast Heim (Advanced)	Temporal Fragment Temporal Gemstone Temporal Spell Sealed Temporal Circlet
Sanctuary Purification	170	1+	1 Day	`/navi rachel 169/245`	Episode 18 - Main Story - Step 58	Amethyst Fragment Experience
Villa of Deception (Normal)	170	2+	1 Day	`/navi wolfvill 79/260`	Episode 18 - Main Story	Amethyst Fragment Pontifex Courage Pontifex Wisdom Villa Basement Key Adulter Fides Weapons
Memories of Thanatos	180	1+	1 Day	`/navi thana_step 154/367`	-	Brilliant Light Accessories Sinful Accessories Fragment of Goodwill Fragment of Sin Magic Swordsman Thanatos's Sword [1] Relic of Thanatos Tower (Memory of Thanatos)
17.2 Garden Maze (Hard)	180	1+	1 Day	`/navi ba_maison 238/44`	Episode 17.2	Barmil Ticket
17.2 Lamda (Hard)	180	1+	1 Day	`/navi ba_maison 120/321`	Episode 17.2	Barmil Ticket Magical Soapstone Epic Module Box