Well Dweller All Bosses: Every Fight, Location, and Order Explained

Looking for a Well Dweller all bosses list that separates confirmed facts from launch-week guesswork? The dark fairy-tale metroidvania from the creators of Crypt Custodian and Islets puts you in control of Glimmer, a tiny bird armed with a matchstick, on a journey through 15 biomes toward a wicked queen — and the developer counts 13 bosses or boss-style sequences standing in the way. This Well Dweller all bosses guide covers the full title-card roster, the area each encounter sits in, the published health values, and the parts of the route that still need a verified run of the retail release.

How Many Bosses Does Well Dweller Have?

The developer's release-date announcement counts 13 bosses or boss-style sequences spread across 15 main biomes, and the released Windows build carries 13 matching boss title cards. Nine of those names also appear on the published Xbox achievement list; the other four — The Colony, Creature From the Deep, Dollmaker's Mirror, and Lida the Terrible — surfaced through the build's own title-card files.

One caveat matters before you plan a route. Most specifics circulating in the community were pulled from the Steam demo build (build 23772623) and from guides published around launch, not from a documented full run of the retail release. The community database NiaMeowDB, which compiled that material and updated its page on September 22, 2026, flags several placements as unconfirmed. Treat the roster as settled and the fine details as player experience until verified.

For context: Well Dweller released on September 22, 2026. As of the 2026-09-23 snapshot of the official Steam store page, the game held a Very Positive rating from 96% of 134 user reviews, and the store listed a 15% introductory discount from $19.99 to $16.99, with the offer stated to end October 6.

The Complete Well Dweller All Bosses List

Below is the full Well Dweller all bosses roster as the release build names it, paired with the area each fight is tied to.

Boss names come from the Windows release's title cards; area placements come from a community guide published September 21, 2026, and remained unverified by a completed release run when NiaMeowDB last updated on September 22, 2026.

Well Dweller Boss Order, Chase Encounters, and Boss Rush

A Well Dweller all bosses order is only partly settled. Two independent community sources — a timestamped completion walkthrough series and a set of launch-day area guides — agree on both ends of the run:

• First: The Groundskeeper, in the Night Garden. It is also the only boss the free demo names.
• Second: The Swarm, in The Bog. Beating it reportedly grants the Climb ability and Tent Travel.
• Late: The Silver Doll, inside the Queen's Castle.
• Final: The Queen.

Everything between those bookends is unordered in the published material, so treat any mid-game sequence list as provisional. One extra wrinkle: the demo contains a second Groundskeeper arena, but nothing confirms whether the retail progression reaches a second encounter.

Not every encounter is a straight fight

• Bosses with achievements: the Silver Doll, the Gravedigger, the Shrine of the Seven Sons, the Starsinger, the Lady of the Drains, and the swarm.
• Won over, not killed: the Forest King.
• Two chases: Late Night Guest rewards escaping the Webdrench Inn, and Hide and Seek rewards evading the Queen. The End then covers the final Queen battle.
• Demo recognition: the Dark Garden achievement pays 14 Gamerscore for beating the Groundskeeper.

Boss Rush

The Windows release ships Boss Rush help text describing replays of bosses you have already beaten. A pre-launch review thread on r/metroidvania reported Boss Rush as a Switch 2 exclusive, but that help text alone does not establish platform availability, so the exclusivity claim stays unconfirmed. The Steam page listed 41 achievements in total as of the 2026-09-23 snapshot.

Boss Health, Phases, and the Queen's Scripted Finale

Only three entries in the Well Dweller all bosses roster have published starting health values, all recorded from the Steam demo build's files.

Starting HP recorded by NiaMeowDB from the Steam demo build (build 23772623); page updated September 22, 2026. These are starting values, not the total damage a fight requires.

Phase and threshold notes:

• Starsinger: the second phase begins at 225 HP or lower on Easy, or 285 HP or lower on Normal and Hard. The transition plays first, and the next phase follows it.
• The Queen, round two: the next attack stage starts below 300 HP on Easy or 400 HP on Normal and Hard, and the stage after that starts below 200 HP on every difficulty.
• The Queen, final block: her second-round attack mode floors her at 49 HP. Below 50 HP she schedules a final block — move close to it to advance the scripted sequence, which sets her HP to zero and leads into the cage scene.

Because these numbers come from a demo build, expect the possibility of tuning changes in the retail version.

Tips for Clearing Well Dweller's Boss Fights

• Lower the difficulty if a fight stalls. The Steam accessibility list confirms adjustable difficulty and save-anytime, so no Well Dweller all bosses fight has to become a grind.
• Mix trinkets rather than hoarding them. Trinkets upgrade abilities and are designed to be combined and swapped to match your play style.
• Lean on the matchstick. Glimmer's light illuminates the world and assists in combat, which matters most in the darker biomes.
• Check the encounter type first. Two encounters are escapes rather than damage races, and trying to empty a health bar during a chase wastes attempts.
• Save Boss Rush for cleanup. It replays fights you have already beaten, making it a low-risk way to relearn patterns.

Well Dweller All Bosses FAQ

How many bosses are in Well Dweller? The developer counts 13 bosses or boss-style sequences across 15 main biomes, and the Windows build carries 13 matching title cards. Nine of those names also appear on the published Xbox achievement list.

What is the first boss in Well Dweller? The Groundskeeper, fought in the Night Garden. It is the only boss the demo names and the only fight with a dedicated demo achievement, Dark Garden.

Are any Well Dweller all bosses encounters impossible to win? Yes — two are chases. Late Night Guest rewards escaping the Webdrench Inn, and Hide and Seek rewards evading the Queen. You survive them rather than defeat them.

Is there a boss rush mode in Well Dweller? The Windows release includes Boss Rush help text describing replays of previously beaten bosses. A pre-launch report described Boss Rush as Switch 2 only, but that claim remains unconfirmed for other platforms.