Achievements
There are 15 Steam achievements. None are hidden. The table below carries two readings from the same day — the morning after launch and the afternoon — because they moved, and the direction they moved is worth understanding.

Full list, with the movement
| Achievement | Requirement (Steam text) | Sep 19 morning | Sep 19 afternoon | Change |
|---|---|---|---|---|
| A Bargain Is Made. . . | Complete Cephalo Cave | 78.2% | 79.7% | +1.5 |
| What Must Be Done | Complete Deception Point | 34.7% | 36.8% | +2.1 |
| Trouble in Paradise | Complete Paradise | 30.5% | 29.2% | −1.3 |
| The Veil Weakens | Complete Dreamer's Rest | 13.5% | 14.8% | +1.3 |
| Blockade Ended | Complete Queen's Armada | 10.0% | 7.9% | −2.1 |
| Gut Feeling | Complete The Gut | 10.0% | 6.8% | −3.2 |
| No Turning Back | Obtain the last scale | 8.2% | 6.1% | −2.1 |
| Master Navigator | Obtain Every Sea Chart | 7.6% | 5.7% | −1.9 |
| Terror of the Seas | Obtain every ship cannon | 8.2% | 5.4% | −2.8 |
| Siren Melody | Obtain every Siren Boon | 7.6% | 5.4% | −2.2 |
| Well-Armed | Obtain every item | 7.0% | 5.0% | −2.0 |
| Master Angler | Catch every fish in the Seven Seas | 6.4% | 5.0% | −1.4 |
| Flock Around | Obtain every bird | 6.4% | 4.3% | −2.1 |
| It is Finished | Beat the game | 5.2% | 3.6% | −1.6 |
| Legendary Captain | Obtain all achievements | 4.7% | 3.2% | −1.5 |
Why half of these went down in one day
A Steam global achievement percentage is unlocks divided by owners. Launch weekend adds owners faster than it adds unlocks, so an early-game achievement climbs (more people are playing the tutorial) while everything past the first few hours can fall — the denominator grew, the numerator did not.
That is a launch-window artefact, not players getting worse and not a bug. It also means a comparison like this is only meaningful on a fixed day; the dungeons page keeps the single current table for routing, and this page keeps both readings so you can see the trend for yourself.
Natural order
The first seven rows are the story spine. Play the game and they drop. No Turning Back is the last scale, not the credits — It is Finished sits 2.5 points lower, and the official soundtrack's extra "Dungeon 8" track is the beat between them.
The six collectible achievements can overlap the story. Nothing in the official text says any of them are missable, and nothing in the reviews says you can lock yourself out. Still, buy sea charts when you see them rather than hoping for a late vendor; see collectibles.
Legendary Captain is the meta-achievement. You cannot get it before the other 14. If it is your last remaining tile, you are missing a cannon, a boon, a chart, an item, a bird or a fish — not a secret 16th dungeon.
What the percentages are saying on day two
- 79.7% through dungeon 1 and 36.8% through dungeon 2 is a launch-weekend curve, not a difficulty wall. Roughly six in ten owners had not left the first region yet.
- Story clear (3.6%) sitting slightly above the 100% achievement (3.2%) means a handful of people finished and nearly all of them kept collecting. On a 6–13 hour game that is a normal weekend for a dedicated player.
- The collector sets cluster between 4.3% and 5.7%, tight enough that no single set is the obvious bottleneck. Pick your least favourite and do it last.
- The OST's Breda and Prince of the Whale tracks do not appear as achievements, so those encounters are inside other unlocks — not extra tiles to chase.
Not on this list
There is no achievement for beating a specific named boss (Macaw, Henny, Commodore, Breda, Ocean King, Prince of the Whale). Bosses are inside the dungeon or minigame completes. There is also no speedrun, no difficulty-tier and no "no-death" achievement in the 15.
Ice Goat Games is a responsive one-person-scale studio — they were answering controller, save and settings threads within hours of launch, and they maintain a pinned official bug thread on the Steam forum. If a later patch adds achievements, this table grows; it does not get a fake "coming soon" row today.