Well Dweller has 13 bosses or boss-style sequences. The names come from the released build's own boss title cards, so all thirteen are in-game names - including the four that the 41-achievement list never mentions.
Two things are worth knowing before the table:
- Three encounters are fixed: The Groundskeeper is first, The Swarm is second, and The Queen is last. The middle of the run is documented as unordered by the sources we use, which is not the same as the game letting you fight them in any order.
- Chases are not bosses. The Webdrench Inn escape (Late Night Guest) and the Queen evasion (Hide and Seek) are chase sequences, not title-card encounters. That is why the roster stops at 13.
All 13 bosses
| # | Boss | Area | Achievement | What beating it gives you |
|---|---|---|---|---|
| 1 | The Groundskeeper | Night Garden | Dark Garden | Opens the route into the Hunter's Cabin |
| 2 | The Swarm | The Bog | Buggy Business | Climb and Tent Travel |
| 3 | Lady of the Drains | The Drains | Down the Drain | A Golden Feather |
| 4 | Gravedigger | Burial Vault | Dig Deep | Progress toward Squinton's birthday party, where the Feather is awarded |
| 5 | Shrine of the Seven Sons | Midnight Drench | Stormy Night | A Golden Feather, collected west of the Shrine |
| 6 | Starsinger | The Lookout Tower | Song of the Stars | A Golden Feather |
| 7 | Forest King | Autumn Forest | Fancy Feast (win over) | A Golden Feather, after the offering sequence |
| 8 | Creature from the Deep | The Docks | None directly (unlocks Into the Deep) | Water vessel access and the assistant captain promotion |
| 9 | The Colony | The Deep (underwater, reached by water vessel) | None | Endless Climb, given by Barge afterwards |
| 10 | Dollmaker's Mirror | Dollmaker's House | None (In the Dollmaker's House is for collecting Magda) | Wall Sling and the Magda rescue follow the encounter |
| 11 | Lida the Terrible | Graven Valley | None | Egbert is collected just after the fight (Littlest Bird) |
| 12 | Silver Doll | Queen's Castle | Sharp and Shiny | Late-castle progress toward the Queen |
| 13 | The Queen | Queen's Castle | Hide and Seek (evade) and The End (battle) | Credits, then the post-credits route on the same save |
Reward is not the same as achievement
Four encounters have no defeat achievement, which trips people up when they check their achievement list:
- Creature from the Deep unlocks water vessels; the achievement for that is Into the Deep - gain access to a water vessel.
- The Colony gives Endless Climb through Barge, with no achievement for the kill.
- Dollmaker's Mirror has no defeat achievement; In the Dollmaker's House tracks collecting Magda.
- Lida the Terrible has no defeat achievement; the collectible that follows is Egbert.
Likewise, two bosses award Golden Feathers through linked events rather than directly: the Gravedigger fight leads into Squinton's birthday party where the Feather is given, and the Forest King is won over rather than killed.
Getting into the later areas
- The Drains is entered from the bottom of the well near The Bog, and its boss sits behind a repaired elevator.
- The Deep is underwater beneath The Docks. The game's own marker directions state the region requires a water vessel, which is why the Creature from the Deep encounter comes first.
- Graven Valley is reached from beside the Hunter's Cabin and connects to Midnight Drench; its boss requires a ticket to the execution.
Guides we already have
- Well Dweller Groundskeeper boss guide
- Well Dweller Swarm boss guide
- Well Dweller Lady of the Drains boss guide
- Well Dweller Starsinger boss guide
- Well Dweller Forest King boss guide
- Well Dweller Creature from the Deep boss guide
- Well Dweller Lida the Terrible boss guide
The remaining encounters (Gravedigger, Shrine of the Seven Sons, The Colony, Dollmaker's Mirror, Silver Doll) have no published written attack lists yet, so their pages go up when the mechanics can be sourced rather than guessed.
Sources
| What this page states | Where it comes from | Status |
|---|---|---|
| 13 names from the released build's boss title cards; first, second and last placements; the middle documented as unordered | NiaMeowDB bosses | Cross-checked |
| Area placements | Gamer Social Club boss list and per-boss guides, cross-checked against NiaMeowDB | Cross-checked |
| The Deep requires a water vessel and sits underwater beneath The Docks | NiaMeowDB quests and in-game directions | Source-linked (in-game text extraction) |
| Achievement pairings and the four achievement-less encounters | NiaMeowDB achievements and the Steam achievement list | Cross-checked |
| Gravedigger's Feather coming later at Squinton's party; Forest King being won over; Shrine's Feather collected west of it | PlayStationTrophies trophy entries, QuestDuo Autumn Forest walkthrough, and Gamer Guides Golden Feather locations | Cross-checked |
| Creature from the Deep → Barge → water vessels; The Colony → Barge → Endless Climb | QuestDuo and Gamer Guides ability locations | Cross-checked |
Not yet checked on this site: a verified fight order for the middle of the run, and boss health or damage values beyond the two fights where extraction data exists. We publish neither until a source does.