List of All Dungeons: Caverns and Sealed Realms

Cavern	Enemies	Boss Room	Inside	Chest Loot
Astral Mountains Cavern full guide → Lv 38–45	LunarisMaraithReptyro CrystSibelyxTombatPolapupWhalaska	ChilletCryolinxElphidranFrostplumeLunarisMammorest CrystMaraithMau Cryst+11 more Boss Lv 42–45	Caged Pals to rescue · Dungeon Elixir · Junk piles · Lotus pickups · Mimics · Mushroom pickups · Pal eggs · Skill fruits · Treasure chests	Gold CoinLarge Pal SoulReinforced ArrowGiga SphereReindrix StewHyper SphereGold KeyTraining Manual (L)Medical SuppliesTraining Manual (XL)
Cavern of the Dunes full guide → Lv 30–40	CawgnitoFuddlerLeezpunkLovanderMossanda LuxTocotocoFinsider	BeakonCawgnitoDazziDigtoiseDinossom LuxFinsiderFuddlerHangyu+7 more Boss Lv 37–40	Caged Pals to rescue · Dungeon Elixir · Junk piles · Lotus pickups · Mimics · Mushroom pickups · Pal eggs · Skill fruits · Treasure chests	Gold CoinMedium Pal SoulReinforced ArrowGiga SphereDumud ChowderHyper SphereSilver KeyTraining Manual (L)Training Manual (XL)Medical Supplies
Cherry Blossom Cave full guide → Lv 40–52	Bushi NoctKatress IgnisKikitMaraithWixen Noct	BralohaBushi NoctChillet IgnisCroajiroDazemuDogenGhanglerGorirat Terra+11 more Boss Lv 47–52	Dungeon Elixir	Gold CoinLarge Pal SoulAssault Rifle AmmoUltra SphereGaleclaw NikujagaLegendary SphereGold KeyTraining Manual (L)Medical SuppliesTraining Manual (XL)
Feybreak Cavern full guide → Lv 50–58	NyafiaSmokieSplatterinaStarryonTarantriss	Caprity NoctCryolinx TerraDazzi NoctFaleris AquaFoxparks CrystGildaneKitsun NoctLoupmoon Cryst+10 more Boss Lv 56–58	Dungeon Elixir	Gold CoinLarge Pal SoulGatling Gun AmmoUltra SphereMammorest CurryUltimate SphereGold KeyTraining Manual (XL)Training Manual (L)High Grade Medical Supplies
Hillside Cavern full guide → Lv 5–13	DaedreamFuddlerKillamariMauTurtacle	CaprityCattivaCelarayChikipiCloveeCremisDaedreamDepresso+22 more Boss Lv 10–13	Caged Pals to rescue · Dungeon Elixir · Junk piles · Lotus pickups · Mimics · Mushroom pickups · Pal eggs · Skill fruits · Treasure chests	Gold Coin Small Pal Soul Pal SphereArrowBreadCopper KeyMega SphereTraining Manual (M)Low Grade Medical SuppliesFrag Grenade
Isolated Island Cavern full guide → Lv 5–13	DaedreamFuddlerKillamariMau	CaprityCattivaCelarayChikipiCloveeCremisDaedreamDepresso+22 more Boss Lv 10–13	Dungeon Elixir	Gold Coin Small Pal Soul Pal SphereArrowBreadCopper KeyMega SphereTraining Manual (M)Low Grade Medical SuppliesFrag Grenade
Mountain Stream Grotto full guide → Lv 20–29	BeegardeFelbatGrintaleKatressLoupmoonTarantrissJelliette	BristlaCinnamothFelbatFlopieGaleclawGobfinGoriratGrintale+7 more Boss Lv 27–29	Caged Pals to rescue · Dungeon Elixir · Junk piles · Lotus pickups · Mimics · Mushroom pickups · Pal eggs · Skill fruits · Treasure chests	Gold Coin Small Pal SoulArrowMega SphereGrilled GaleclawSilver KeyGiga SphereTraining Manual (M)Training Manual (L)Medical Supplies
Ravine Grotto full guide → Lv 12–19	DaedreamFuddlerMauNoxTurtacle	ArsoxCawgnitoDigtoiseDumudGaleclawHangyuJellroyKelpsea+8 more Boss Lv 17–19	Caged Pals to rescue · Dungeon Elixir · Junk piles · Lotus pickups · Mimics · Mushroom pickups · Pal eggs · Skill fruits · Treasure chests	Gold Coin Small Pal Soul Pal SphereArrowBreadCopper KeyMega SphereTraining Manual (M)Low Grade Medical SuppliesFrag Grenade
Sunreach Skies full guide → Lv 65–69	BakemiEidrolonHoodleLapureSouffline	DynamoffLapironPuffoltSnockSoufflineTropicawValentail Boss Lv 65–69	Dungeon Elixir	Gold CoinDeluxe BaitGiant Pal SoulAlluring BaitHeavy Assault Rifle AmmoPrototype Shotgun AmmoTactical Grenade Launcher AmmoSol SphereMammorest CurryAncient Sphere
Volcanic Cavern full guide → Lv 32–38	Blazehowl NoctIncineramLeezpunk IgnisPyrin NoctGhanglerGloopie	BlazehowlBlazehowl NoctBushiDumudFenglopeFlambelleGloopieGobfin Ignis+10 more Boss Lv 36–38	Caged Pals to rescue · Dungeon Elixir · Junk piles · Lotus pickups · Mimics · Mushroom pickups · Pal eggs · Skill fruits · Treasure chests	Gold CoinMedium Pal SoulCoarse AmmoGiga SphereRushoar Bacon 'n' EggsHyper SphereSilver KeyTraining Manual (L)Medical SuppliesOld Revolver Schematic 1

The Schematic Chest Nobody Mentions

The loot column above is the everyday chest — spheres, souls, food, coin. It is not the whole story, because dungeon chests are graded, and in every cavern one grade drops its consumable table entirely and rolls gear schematics instead. In that container a schematic is very nearly a guarantee: about nine rolls in ten come back as a blueprint rather than an item. Which blueprints is fixed by the cavern, so the door you pick is the gear line you are farming — luck only decides which piece of it.

Those percentages are all for rung 1 of a schematic, and the rungs collapse fast — each step up is worth roughly a fifth of the one below it. Metal Armor out of the Dunes runs 10.4% → 2.1% → 0.41% → 0.083% across its four rungs. Farm for the schematic and craft it; farming the same chest for a high rung is a four-figure number of runs.

The Stand at the End Is Its Own Table

The technology-book stand in the boss chamber does not draw from the chest pool at all. It always pays coin, plus one draw from a short list that changes with the region — and in six caverns that list includes a raid summon slab, which is the cheapest way there is to get one.

Two things to take from that. If you want to run Bellanoir repeatedly, the Dunes and Volcanic Cavern are the same slab from two doors and roughly one stand in four gives you a slab — four clears per summon, and the clears pay their own way in coin and schematics. And the low four caverns are the only place an Advanced Technical Manual comes out of a stand at all; every cavern above them has dropped it from the list, so unlock what needs one before you move up.

Six Caverns Grow Skill Fruit — and the Best One Is Not the Deepest

"Skill fruits" in the Inside column above is a real spawn point, not scenery, but only six caverns place one. Isolated Island Cavern, Cherry Blossom Cave, Feybreak Cavern, Sunreach Skies and the Terraria dungeon have no fruit tree at all, so clearing harder does not get you closer to a fruit. The tree that does appear draws its region's wild list, and those lists split into two grades that behave nothing alike.

The three low caverns share the Grasslands list — 39 fruits, every one of them common or uncommon. A top-rarity fruit cannot come out of them, however many runs you put in. From the Dunes up, the list changes shape: the same eleven top-rarity fruits sit in the Dunes, Volcanic and Astral pools, identical in all three. Only the filler around them differs, so pool size alone sets the odds — and the smallest pool is in the snow, not at the top of the ladder.

So the snowfield cavern is the best fruit farm in the game's dungeons on both counts, and it is also the last one that has a tree — there is nothing to trade up to. The eleven it can hand you are Pal Blast, Solar Blast, Hydro Laser, Ignis Rage, Fire Ball, Lightning Bolt, Lightning Strike, Rock Lance, Blizzard Spike, Dark Laser and Dragon Meteor. Two entries are worth knowing about in the mid pools: the Dunes and Volcanic Cavern each double the weight on a handful of ordinary fruits — Tri-Lightning, Stone Blast, Flare Storm, Lock-on Laser and Dragon Breath — which is what pushes their rare share below the snow's. Full lists and the other routes: skill fruits.

Rerolling the Boss Room

The boss at the end of a cavern is drawn from that cavern's pool when you walk into the chamber, and the draw is not final. Back off far enough that the boss unloads, then return — the game picks again. You can repeat that until the Pal you actually want is standing there, without abandoning the run or losing the chests you have already opened. The pools carry no visible weighting, so treat every return trip as a fresh even draw.

That makes pool size the number that decides whether hunting a specific alpha here is sane. It is not close to constant: the two level 5–13 caverns share the widest lottery in the game, while the sky cavern runs the narrowest one — and a narrow pool is exactly what you want when you are chasing a name rather than a level.

Two practical reads. In Sunreach Skies a named boss lands roughly every seventh walk-in, so rerolling is a real farming method there. In Hillside Cavern and Isolated Island Cavern — the same 30-Pal pool behind two different doors — you will average thirty attempts for one specific name, which is worth it only for something you cannot get any other way this early. On the way to the chamber, a flooded stretch of corridor is the tell: water underfoot means you are on the branch that ends at the boss, so at a fork take the wet path.

Three Pals Live Behind These Doors and Nowhere Else

153 Pals turn up on the rosters above, and all but three of them can also be hunted in the open world. The exceptions are Mau, Katress Ignis and Eidrolon — none of the three sits in a wild spawn table anywhere on the map. They are not equally easy to walk out with, because two of them are in a boss pool and one is not.

The door is still not the only route, which is worth knowing before you commit an evening to it. Eidrolon has a body above ground: one fixed alpha at Lv 69 standing in its own spot on the map, and an alpha can be caught rather than killed. Katress Ignis can walk up and ask to join on its own — it is in the recruiter pool from Base Camp Lv 14 at 1.25%, and neither of the other two is on that list at any base level.

All three also breed, and Mau is the case that makes the label soft. It has nine parent pairs, seven of which use nothing but Grasslands starters — Chikipi with Sparkit, Jolthog with Lamball, Lifmunk with Vixy — so a hatched Mau digging up coin on a ranch with Gold Digger is available to a player who has never stood in a cavern entrance. The other two are late enough that you already own the parents by the time their cavern is survivable: Katress Ignis has 228 pairs, Eidrolon 219, Anubis with Eidrolon Ignis among them.

If the Cavern You Are Looking For Is Not on This List

Three caverns carry an English name that matches no other language in the game, so a guide, a video or a friend on a non-English client can send you hunting for a dungeon that is already above under a different label. The names are stored per language and they diverge — these are the same three doors, not missing ones.

The other seven translate straight across — hillside, ravine, mountain stream, volcano, dune, isolated island, cherry blossom — so if the name you were given describes a landscape, it is the cavern that obviously matches it.

The Terraria Dungeon (Sealed Realm of Terraria)

The collab dungeon on Yakushima is in neither list above, and that is the game's doing, not ours. Its entrance carries no name — the name slot for it holds the string "???" — and the files class it as a rotating cavern rather than a Sealed Realm, even though the map region around it reads Sealed Realm of Terraria. It is the ×7.5 row labelled Yakushima in the XP table above, one rung under Sunreach Skies and above every cavern on the mainland.

It is also the only dungeon in the game built as a run of four zones instead of one spawn pool. Each zone has its own enemy table and its own level band, and the bands do not overlap — you walk the difficulty up as you go in, ending at a fixed Lv 45 boss room. The crossover monsters carry most of the weight in every zone; the wild Pals below are roughly one spawn group in six near the entrance and one in five in the deeper zones, so a Pal you want here is a patient farm, not a walk-in.

The loot is split in two, and the split is the whole reason to run this place. Ordinary chests along the route roll a pool that is gear schematics roughly a third of the time; the chest at the end rolls a pool no other dungeon has. Every other cavern's end-of-run slot points at a table that is Gold Coin about 97 times out of 100 with a single point of weight on each technical manual. This one throws that table out — there is no Gold Coin in it at all.

Two things follow from those tables. Farm the route chests for the Hallowed set and Excalibur — the end chest cannot drop them at all. And every schematic in this dungeon has five rarity rungs: on the route pool the common rung is about a 4% roll while the top rung is roughly 1 in 15,000, so chase the drop first and the rung never. The end chest is far kinder on that count — its four weapon schematics barely taper across the five rungs, about 2.1% for the common rung down to 0.6% for the top one, which makes it the only realistic place to pull a max-rung Terraprisma. Background on the whole collab: Tides of Terraria.

The four World Tree dungeons are literally named "This Dungeon is under investigation." in-game — Pocketpair's little joke. Related: Pal Expeditions · all Alpha bosses · interactive map.