What the achievement asks
Find the fifteen hidden treasures of Undermine. Ten points, account-wide.
None of them is a puzzle. Every one is an object you click, which makes this the most straightforward treasure achievement in the expansion and, in Undermine, still not quite trivial.
Undermine is vertical
A coordinate in Undermine tells you where to stand on the map but not which level you are meant to be on. The city is stacked, with walkways over walkways, and several of these treasures sit one floor above or below the street the coordinate points at.
If you are on the right spot and see nothing, look up and look over the railing before deciding the treasure is missing. That single habit accounts for most of the time people lose here.
The fifteen
| Treasure | Coordinates |
|---|---|
| Unexploded Fireworks | 48.45 42.93 |
| Fireworks Hat | 57.84 52.69 |
| Blackened Dice | 38.96 59.63 |
| Potent Potable | 69.65 21.64 |
| Papa's Prized Putter | 74.65 80.12 |
| Particularly Nice Lamp | 39.38 61.07 |
| Marooned Floatmingo | 63.81 32.20 |
| Crumpled Schematics | 42.28 82.31 |
| Suspicious Book | 49.88 66.18 |
| Exploded Plunger | 49.70 90.27 |
| Lonely Tub | 59.25 18.87 |
| Abandoned Toolbox | 40.84 21.27 |
| Unsupervised Takeout | 26.69 42.88 |
| Uncracked Cold Ones | 53.41 52.74 |
| Trick Deck of Cards | 43.64 51.55 |
The Fireworks Hat is the one coordinate where careful players disagree. It is most often reported at 57.84 52.69, and some place it at 55.9 51.8. Both are inside the same district, so if the first is empty, sweep between the two rather than concluding it is bugged.
Doing it in one lap
The fifteen are spread across the whole city, so the sensible order is geographic rather than the list order. The northern cluster runs from the Abandoned Toolbox at 40.84 21.27 across to the Lonely Tub at 59.25 18.87 and the Potent Potable at 69.65 21.64. The centre holds the Trick Deck of Cards, the Uncracked Cold Ones, the Fireworks Hat and the Unexploded Fireworks within a couple of streets of each other. The south takes in the Exploded Plunger, the Crumpled Schematics and Papa's Prized Putter.
Skyriding works throughout Undermine, so the lap is a few minutes of flying between clicks rather than a walk.
Where it fits
One of six under Going Goblin Mode, which rewards the Gallagio Grand Gallery warband campsite and is part of Worldsoul-Searching, the War Within meta.
The rares of Adventurer of Undermine, the books of Read Between the Lines and the rats of You're My Friend Now are all in the same city, so plan one long visit rather than five short ones.