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Altgard Sealed Dungeon Walkthroughs
October 24, 2026 at 11:39 PM
Add original Altgard Sealed Dungeon routes, region groupings and named title rewards.
Use the area headings below to plan Sealed Dungeon clears across Altgard. Complete each cave's final objective: it may require a book, a freed chamber, a boss or a treasure chest after the fighting ends.
Look for exploration question marks to locate entrances, then follow the marked objectives inside. Check current reward and cross-faction eligibility in your service before planning a reward run.
Memory puzzles reveal safe blue-tile positions before the traversal phase. Memorize each pattern afresh, then follow the displayed timer. Den of Exiles and Library of Foresight each specify a 15-second puzzle; Rift Fissure and Twisted Pit contain several separate encounters.
Empty Cave and Treasure Hunter Residence require enemy-dropped keys. Old Graveyard hides its key in a casket, while Warriors' Rest requires destroying sword statues. Read the objective before opening every nearby container: some caskets summon enemies.
Abandoned Memorial Room, Pirate's Treasure Storage and Unstable Cave include submerged routes. Fortuneteller's Grave uses gliding and an updraft between its three seals; Worshiper's Underground Cave requires returning to the operative after defeating the enforcer above.
Dungeon | Completion route | Background |
|---|---|---|
Ruins of the Ancient City of Ru | Open the first Sealed Door and complete four marked objectives. Defeat Power-Possessed Kianah; interact with Suspicious Sorcery and clear its summoned enemies; defeat Obsessive Lithia; clear the lingering souls. Open the final Seal Door and defeat Idris. The same ruins also have an entrance on Aullaeu Funeral Island in Verteron. | A legendary ancient civilisation draws explorers to the ruins. |
Dark Root Cave | Clear red-circle enemies and open white-circle chests along the passage. Open the yellow-triangle Precious Treasure Chest at the end. | An Agrint contaminated by Drana occupies the treasure cave. |
Drana Depository | Take the next left along the main path. At the end, defeat Depository Manager Arya and the nearby enemies. | Arya guards the Balaur Drana store and is notorious for killing Daevas. |
High Priest's Ruins | Open the white-circle treasure chests while advancing through the ruins. Pass the Ruins Door and open the yellow-triangle Precious Treasure Chest in the final chamber. | After Fafnite stole Hystan's soul and mind, the Nornir sealed his murderous body and memorialized the victims with a stele. |
Skurv Laborer Den | Clear every yellow-marked Mumu along the main route through the end of the den. | Mumu laborers undergo harsh warrior training here, with failed trainees imprisoned. |
Twisted Pit | Follow the light beams through four consecutive memory puzzles, gliding down to reach the second and passing an arch before the last. Memorize each blue-tile pattern and traverse those positions within the timer; allow 15 seconds for each of the first two puzzles. Read the final stand to collect Exploring the Ancient City of Ru Vol. 2. | Explorers associate this distorted pit with the ancient city of Ru and its hidden records. |
Dungeon | Completion route | Background |
|---|---|---|
Abandoned Archon Jail | Defeat all yellow-triangle enemies along the route. Open the Iron Door and continue clearing marked enemies to finish. | Moslan bandits occupy a former Asmodian prison. |
Bloodsoaked Confessional | Take the right-hand route while defeating Balhash's Followers, then defeat Fanatic Balhash in the boss room. | Fanatics claiming devotion to Zikel practise distorted beliefs here. |
Fortuneteller's Grave | Glide down from the entrance and clear the Tainted Wraiths along the red-dot route. Drop to the first yellow-marked seal, defeat the Nornir Wraiths and interact with it. Follow the light beam and use the updraft to reach the second seal; clear its guards and weaken it. Glide to the third seal, defeat its guards and weaken it. Descend again, follow the light beam through the arch and examine the Fortuneteller's Stone Casket. | Students of the Nornir prophets hid here after foreseeing their own transformation into Karas. |
Howling Den | Defeat red-circle enemies throughout the corridor. At the back, open the ordinary chests and the yellow-triangle Precious Treasure Chest. | Varg experiments erased their human memories, leaving only the command to guard treasure. |
Library of Foresight | Defeat yellow-triangle enemies on the way to the Library Door, then follow the light beam inside. Memorize the blue tiles and step on their positions after the floor turns red, completing the puzzle within 15 seconds. Read the newly appeared book stand to obtain Book of the Bulwark Vol. 1. | Musein built a hidden library to preserve Asmodian knowledge, including old works about the Bulwark. |
Prison of Oblivion | Pass the arch, defeat enemies and search the yellow-marked Stone Caskets. The casket at the minimap's rightmost corner contains History of the Abandoned Vol. 2; others can be empty or summon enemies. | This forgotten wartime prison now holds rats, restless dead and a hidden chronicle. |
Victims' Cave | Approach the marked light beam to summon the Sacrificed Daevas and defeat them all. Defeat Desperate Robert's Apparition when it appears after the other enemies. | Destruction Archon cadets killed for refusing Hystan's orders remain trapped here in despair. |
Dungeon | Completion route | Background |
|---|---|---|
Abandoned Memorial Room | Dive from the floating entrance and break the first marked stone wall underwater. Break the second sturdy stone wall and continue swimming, then surface into the Inner Memorial Room. Clear the path to the light beam and defeat Soulless Priestess Soirel with the surrounding enemies. | Balaur took the souls of Soirel and the believers who honoured the dead here. |
Closed Hideout | Defeat every yellow-marked enemy along the full main path. | A once-sealed Karas refuge has reopened after decay. |
Worshiper's Underground Cave | Clear enemies while descending to the lowest level and speak to the Fanatic Operative at the door. Use the updraft to reach the yellow-marked Fanatic Enforcer and defeat it, then report back to the operative. Open the Oratory Door, defeat all yellow-triangle Fanatics and read Zikel of Destruction Vol. 2. | Corrupted Zikel devotees expand their influence from these underground caves and worship the stored records. |
Dungeon | Completion route | Background |
|---|---|---|
Abandoned One's Grave | Defeat Karas Scion Behit and the surrounding enemies along the path. | Behit buried his family after the Odyle-depletion plague turned them into Karas, then shut himself inside. |
Dungeon | Completion route | Background |
|---|---|---|
All-Curing Cave | Find the entrance at the base of the shoreline cliff. Defeat the immediately visible Rare Fungpus and all surrounding enemy spawns. | A mushroom rumoured to cure any illness grows inside the cave. |
Rift Fissure | Speak with the first marked apparition and follow the light beam into a memory puzzle. Memorize the blue tiles and step on them after the floor turns red, within 15 seconds. Approach the next apparition and defeat the knight spirits. At the final apparition, enter the light beam and repeat the remembered-blue-tile puzzle. Read Exploring the Ancient City of Ru Vol. 3 after solving the last puzzle. | Explorers believe the fissure leads toward the ancient city of Ru and preserves its records. |
Dungeon | Completion route | Background |
|---|---|---|
Ascetic's Cave | Follow the short route to yellow-marked Reckless Jonas and defeat him with surrounding enemies. | Reckless Jonas and followers hide in a former ascetic retreat after fleeing the Blades. |
Den of Exiles | Defeat all yellow-triangle enemies along the corridor. At the light beam, memorize the blue tiles and step on those positions after the board turns red, within 15 seconds. Pass the Ruins Door and read History of the Abandoned Ones to complete the dungeon. | Oath-breaking Mau have occupied ruins containing early Daeva chronicles. |
Kumbahum's Cave | Defeat red-circle enemies along the main corridor, then kill the yellow-marked Shaman Kumbahum at its end. | Kumbahum and his followers seek Balaur power rather than Mau honor. |
Tayga Breeding Ground | Defeat all yellow-triangle enemies along the route. Wait for the disturbance to draw enemies into opening the closed door. Go through the opened door and defeat the final group. | Black Claw Mau raise their Tayga beasts here. |
Dungeon | Completion route | Background |
|---|---|---|
Blue Dragon's Trap | Defeat Fafnium Protectors along the route, turn left and clear the Fafnium Guardians. Continue to the boss room and defeat yellow-marked Sentinel Nuraka. | Lagta Brigade manages Fafnium used to strip Daeva souls and control their bodies. |
Fafnite Storage Room | Turn left from the entrance, destroy the first marked Storage Room Fafnium and defeat its guards. Pass the Storage Room Door while avoiding traps, then destroy the next Fafnium and its guards. Interact with the marked Fafnium Manual to complete the objective. | The Balaur imprison Daevas here to extract Fafnite and keep instructions on Fafnite and Fafnium. |
Fanatics' Den | Clear red-circle enemies and open white-circle chests along the corridor. Defeat the final room guards before opening its Precious Treasure Chest. | Zikel's zealots bring sacrificial victims and their offerings into this cave. |
Homish's Prison Compound | Follow the corridor to its end and defeat Warden Homish together with the other enemies. | Homish imprisons humans and Daevas here as living resources for producing Fafnite. |
Dungeon | Completion route | Background |
|---|---|---|
Destroyed Scriptorium | Clear red-circle enemies along the main route and pass through the Ruins Door. Interact with the Scriptorium Tome in the final chamber to collect Zikel of Destruction Vol. 1. | A ruined sanctum is said to preserve writings attributed to Empyrean Lord Zikel. |
Lamnah Base | Find the yellow-triangle Scouts Captain Lamnah and defeat the captain and the surrounding enemies. | Lamnah leads a ruthless Lagta Brigade Draconute warband from this cave. |
Predator's Lair | Pass the arch and clear the Varg Poachers along the corridor. Open the door and defeat every remaining yellow-triangle poacher. | Escaped Lepharist Varg formed independent packs that capture rare forest animals for illegal trade. |
Unstable Cave | Dive from the entrance water and follow the submerged route while avoiding falling rocks. On land, clear the cave enemies and follow the light beam. Defeat successive enemies to attract Daine of Tears, then defeat the spirit while continuing to dodge rocks. | Daine is an unstable Water Spirit separated from its pact-bearer after escaping the Etheria Rift cave. |
Dungeon | Completion route | Background |
|---|---|---|
Destruction Archons Armory | Defeat enemies along the corridor and open optional white-circle chests for additional loot. Pass the Ruins Door, clear the final room and open its Precious Treasure Chest. | Destruction Archons have guarded this old armory and its hidden treasure for generations. |
Odylium Marauder Den | Clear enemies and avoid traps along the main path. Pass the Ruins Door, defeat the final enemies and examine the Pile of Documents for Storing and Using Odyle. | The Blades fortify this Odylium marauder store with security devices and retain important Odylium documents. |
Pirate's Treasure Storage | Swim through the concealed underwater passage while avoiding toxic gas. On land, defeat yellow-marked enemies and open the Treasure Storage Door. Defeat Custodian Chakkerman and the nearby enemies. | The Blades seized this pirates' treasure store beneath the lake and placed Chakkerman in charge. |
Dungeon | Completion route | Background |
|---|---|---|
Dratona Assembly Area | Follow the main route and defeat every yellow-triangle Balaur through the end of the assembly hall. | Dratona born in Atreia are hatched and trained here, but their frailty leads to their treatment as expendable troops. |
Insectoid Tunnel | Clear enemies along the tunnel and reach the yellow-marked treasure at its end. Open the Precious Chest and the surrounding chests to complete the dungeon. | Burrowing insectoids have weakened the earth beneath Altgard and live in these tunnels. |
Library of Patience | Clear red-circle enemies while advancing through the rooms. Avoid the rotating traps marked by white circles and examine the Ancient Tome to collect Book of the Bulwark Vol. 3. | Another secret library established by Musein holds old Bulwark records. |
Library of Wisdom | Defeat red-circle enemies along the main corridor and interact with the final Book Stand to obtain Book of the Bulwark Vol. 2. | The Kerubar protect this secret Musein library and its Bulwark texts. |
Dungeon | Completion route | Background |
|---|---|---|
Dratona Cave | Destroy all Cave Dratona Eggs, then defeat Mature Baratuna to finish. | Baratuna guards the Dratona eggs filling this cave. |
Treasure Hunter Residence | Defeat yellow-triangle enemies until one drops the Treasure Room Key; fly between enemy positions when needed. Unlock the marked Treasure Room, defeat the spawned enemies and read Day of the Balaur Invasion Vol. 1. | Trapped treasure hunters died fleeing the Balaur and now guard an old tome as revenants. |
Trickster's Den | Clear enemies along the path and open the door into the den. Avoid traps to reach the Abandoned Chest and collect its Unfinished Letter. Pass the next prompted door, clear its guards and defeat Trickster Boss Korhe. Read the Scattered Letters after the fight to finish. | Exiles led by Korhe hide valuables stolen from Safe Haven in their den. |
Dungeon | Completion route | Background |
|---|---|---|
Dusk Pit | Clear Legion Outlaws along the path and open the chest before passing through the arch into the next chamber. Defeat the remaining enemies and the Legion Outlaws Leader. | Daevas who abandoned their former path and serve the Balaur hide here. |
Smuggler's Cave | Reach the yellow-marked Smuggler Captain Sumakhi at the end of the cave and defeat the captain and the nearby enemies. | The Shulak smuggler Sumakhi continued his ruthless trade after moving from the Abyss to Altgard. |
Watcher's Temporary Outpost | Defeat Draconute Warriors near the entrance and clear every Draconute along the path to its end. | A temporary Draconute battalion watches Calderon Canyon from this outpost. |
Dungeon | Completion route | Background |
|---|---|---|
Empty Cave | Defeat the yellow-triangle enemies to find the Half-Digested Key. Unlock the Cave Door, clear the final enemies and examine the marked Pile of Luggages for Krao Research Records. | Abandoned Lepharist Krao experiments left surviving subjects wandering this cave. |
Lonely Rock Chasm | Follow the yellow marker to the end and defeat Informant Zibro and the surrounding enemies. | A Blades traitor was tortured and abandoned here; restless Daeva spirits now haunt the cave. |
Scale Altar | Follow the main path to the yellow-marked Warrior Wasti and defeat Wasti with the nearby enemies. | The feared Naga warrior performs rites here to increase the Dragon Lord's power. |
Shulak Cave | Defeat Mad Lazekhi and the other enemies inside. | A Shulak driven mad by Fafnite dust poisoning is confined here. |
Dungeon | Completion route | Background |
|---|---|---|
Final Haven | Clear red-circle enemies and open white-circle chests along the main corridor. At the back, defeat the guards around the yellow-triangle Precious Treasure Chest and collect the treasure. | Daevas sheltering behind the waterfall lost their scouts and remained trapped by fear until the refuge became their tomb. |
Dungeon | Completion route | Background |
|---|---|---|
Fungie Habitat | Clear the red-circle Fungies along the path. Defeat the guards at the far end and open the treasure chests there. | Unusually dense Fungie growth conceals treasure in the cave. |
Rock Cave | Defeat guards and examine each yellow-marked Stone Tablet until you find Revelations of Khalil Vol. 3. | Kalgolems occupy a cave said to hold a fragment of Khalil's prophecy about the Daevas. |
Spider Cave | Clear spiders along the corridor and open the white-circle chests. After defeating the final enemies, open the Precious Treasure Chest. | Odyle Spiders infest this abandoned Odylium mine, frustrating treasure hunters. |
Dungeon | Completion route | Background |
|---|---|---|
Hidden Vein Cave | Follow the path and defeat all yellow-triangle enemies, including the Ore Vein Kalgolems. | Rare mineral veins have attracted crystalline monsters to this hidden cave. |
Lost Ruins | Pass the arch, defeat the Roah Priests and pull the lever to open the first door. Avoid traps on the way to the stairs, defeat the next priests and pull the second lever. At the light beam, memorize the blue stepping-stone positions in the randomized layout, then traverse them while jumping over red tiles within the time limit. Pull the next lever and read Exploring the Ancient City of Ru Vol. 1. | An unstable Abyss rift reveals records of the ancient city of Ru. |
Old Graveyard | Pass the first arch and locate the Stone Casket near the next arch entrance that contains the Treasure Room Key. Other caskets summon enemies. Unlock the Treasure Room and open all its chests to complete the dungeon. | Many unnamed dead rest here, drawing grave robbers seeking buried wealth. |
Ossuary of the Noble | Defeat enemies along the route and search the yellow-marked Stone Caskets for the Worn Key. Clear the guards and unlock the Memorial Chamber inside the Mausoleum. Defeat the final enemies and examine the Stone Tablets to find the Memorial Tablet. | Noble families suspected of being Karas were confined in this ossuary during the massacres. |
Poisonous Plant Habitat | Defeat the contaminated wildlife near the entrance, then clear the enemies in the next area. Open the nearby chest before leaving. | Poisonous plants contaminate Agrints and slimes as miasma intensifies inside the cave. |
Dungeon | Completion route | Background |
|---|---|---|
Lagta Fafnite Storage | Follow the short route to Supervisor Sinah and defeat the boss. | Sinah supervises this Lagta Brigade Fafnite store. |
Dungeon | Completion route | Background |
|---|---|---|
Place of Rest | Glide down, clear the guards and examine the yellow-marked Stone Tablets until you find Day of the Balaur Invasion Vol. 2. | Daeva defenders sought shelter in this valley before a Dredgion bombardment turned it into a tomb. |
Dungeon | Completion route | Background |
|---|---|---|
Valka's Nest | Defeat Mutated Insectoid Valka and the Drana Mutant Sylphens near the entrance. | Contaminants leaking from the crashed Dredgion transformed Valka into a giant insectoid. |
Dungeon | Completion route | Background |
|---|---|---|
Warriors' Rest | Clear guards and destroy the marked Zikel's Sword statues to find the key and pass the first Ruins Door. Destroy the swords in the next room and pass its Ruins Door. Clear the final guards and read Zikel of Destruction Vol. 3. | Destruction Archons devoted to Zikel rest in this ancient sanctum, which may hold the lord's relics. |
The following dungeons have named title rewards. Check title effects and reward eligibility in the current title and dungeon menus.
Dungeon | Title |
|---|---|
Ruins of the Ancient City of Ru | Through Hell and Back |
Abandoned Archon Jail | Sit! |
Abandoned Memorial Room | Holding My Breath Now |
Abandoned One's Grave | The Forsaken |
All-Curing Cave | Panacea |
Ascetic's Cave | Self-Flagellating |
Bloodsoaked Confessional | A Coward's Repentance |
Blue Dragon's Trap | Shutting Down |
Closed Hideout | I'll Take You All On |
Dark Root Cave | Sit Still |
Den of Exiles | Open Up |
Destroyed Scriptorium | Round and Round |
Destruction Archons Armory | Heir of Eternity |
Drana Depository | This Is Really Starting to Dragon |
Dratona Assembly Area | This Is Not a Drill |
Dratona Cave | Hatching Eggs |
Dusk Pit | A Floor Beneath the Floor |
Empty Cave | Philosopher's Stone |
Fafnite Storage Room | Mission Impossible |
Fanatics' Den | Don't Be Blinded by Greed |
Final Haven | Dead Man's Chest |
Fortuneteller's Grave | Rule of Three |
Fungie Habitat | Uncrushable |
Hidden Vein Cave | Sharing is Caring |
High Priest's Ruins | Weight of Trust |
Homish's Prison Compound | Prison Break |
Howling Den | Let Them Fight |
Insectoid Tunnel | Social Distancing |
Kumbahum's Cave | Get in Line! |
Lagta Fafnite Storage | No-Fly Zone |
Library of Foresight | The High Walls of Pandemonium |
Library of Patience | Eternal Fortress Wall |
Library of Wisdom | Breathtaking Knowledge |
Lost Ruins | Engraved in Stone |
Odylium Marauder Den | Of a Convoluted Interior |
Old Graveyard | Second From Last |
Ossuary of the Noble | A House Divided |
Pirate's Treasure Storage | Irretrievable |
Place of Rest | Get Out! |
Poisonous Plant Habitat | Uprooted |
Predator's Lair | My Dog Bites |
Prison of Oblivion | Rose from a Coffin |
Rift Fissure | Hazy Apparition |
Rock Cave | Archaeologist |
Scale Altar | Can't Hear You |
Shulak Cave | Anti-Doping Task Force |
Skurv Laborer Den | Whack-a-Mole |
Spider Cave | Jackpot! |
Tayga Breeding Ground | Here I Am |
Treasure Hunter Residence | Only One Sacrifice Was Required |
Trickster's Den | Rules on the Ledger |
Twisted Pit | Photographic Memory |
Valka's Nest | Outlier |
Victims' Cave | You Have the Wrong Person |
Warriors' Rest | Safety First |
Watcher's Temporary Outpost | Can I Go to the Bathroom? |
Worshiper's Underground Cave | Keeper of Promises |
Strongholds and Sealed Dungeons covers one-time clear rules, rewards, lore collections and the other exploration instances.