Well Dweller Achievements Guide: All 41 and How to Chase Them

Forty-one achievements, one honest caveat: the official count is verified, the full list of names is not something we will invent. This page maps the terrain instead - what a completion run involves, which in-game tools track your gaps, and where achievement hunters realistically get stuck in the launch month.

How many achievements are there?

41, per the Steam store page - a count right in the modern metroidvania band, and one of the few achievement facts that counts as official. The authoritative list lives in two places: your Steam client’s achievement page, which shows every name with its global unlock percentage, and the game itself. Early coverage has not produced a verified complete table, and one 100% runner admits on camera that he never studied the list before finishing 40 of 41. So treat any full achievement table you find this month with suspicion - including the single fragment we quote below, which comes from reading a stream overlay.

What does a 100% run actually involve?

Achievements in a game like this mostly fall out of thorough play, so the honest proxy for hunting them is watching what a completionist did. One runner uploaded a labeled 100% playthrough, and the collection tracks he works through give you the shape of the checklist: spirits to collect and return, with his counter reading one of twenty early on; golden feathers, with seven referenced across his run; rescued family members; scattered lore pages; workshop tokens funding upgrades; and the full trinket set. Treat the exact totals as player-reported - his menu, not ours, is the ground truth - but the categories themselves match the game’s own counters.

His most useful discovery is a built-in safety net. An in-game map character explains that one map highlights points of interest when you are lost, and “the second map shows all the collectibles you’ve missed.” If that works as described, completion here is unusually forgiving for the genre: the game itself tells you what is left, which is exactly the information achievement chasers usually have to reconstruct by hand.

How do you chase them by category?

Without printing unverified names, you can still plan by the shapes these games use:

• Exploration achievements reward covering ground. The map marks locked doors and points of interest, so the core habit is simple: every time a new movement ability lands, sweep old areas for the barriers it opens. Our abilities and unlocks breakdown gives you the unlock order to schedule those sweeps.
• Collection achievements reward finished counters. Every track above shows progress in the menu, so “unfinished” is the only state worth remembering - and the missed-collectibles map is your backstop before you comb rooms by hand.
• Boss and combat achievements reward mastery. The fifteen-fight roster is catalogued in our all bosses list, and re-challenges are where mastery awards tend to hide - the runner above finds a late challenge area and guesses it is “probably an achievement for redoing” it. That is his speculation, but it is the right instinct. His run also shows in-game tasks paying out for goals like collecting ten trinkets, so the game hands out structured challenges on its own.
• Upgrade achievements reward investment. Fully upgrading trinkets at workshops is exactly the kind of long-tail goal these games attach awards to - the same runner flatly expects there is one. If you are upgrading anyway, the trinkets guide keeps slots and currency from fighting each other.

How long does a 100% run take?

Longer than the credits suggest, and the best number available is a player estimate. The runner above recalibrates on camera: roughly 45% map completion around five hours in, an abandoned first guess of finishing by hour ten, and a revised plan of about fifteen hours for comfortable 100% - because every new ability speeds up traversal, which he describes as “an almost exponential curve.” Two separately uploaded full-game runs each show about seven and a half hours of footage, but footage length is not playtime, and thorough players sit well above it. Budget a weekend and then some, not an evening.

Which achievements trip people up?

The patterns from early completions:

• The last percentages. The same curve that accelerates the endgame makes early estimates worthless - do not judge your pace at hour five.
• The one that got away. That 40-of-41 runner identifies his missing piece from the list check: a vessel trick he phrases as “juggle the flaming vessel 10 times.” Single-source name, but the lesson travels - some achievements are performances rather than progress markers, and only a final list check catches them.
• Limited healing stock raises the stakes on any self-imposed challenge run, so vial discipline matters more than raw stock size.
• The cleanup lap is real. Full completion and endings interact in games shaped like this one; our true ending guide documents that route separately if you are saving it for last.

Do you need external tools to track them?

Less than usual. Between the Steam client’s built-in list with global unlock percentages and the in-game maps - including the missed-collectibles one - the game does most of the bookkeeping itself. Community wikis are already appearing, but we have not verified any of them and will not endorse a half-filled table this early. If you want the underlying habits rather than a checklist, the tips and tricks collection covers the exploration discipline that most of these 41 will ride on.