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v0.19.0 · 13 October 2026
Deep Charts: maps, tiers and the Lodge
How charts work in The Ember Depths: where they drop, what the 16 tiers mean, Pristine and torn clears, and every Lodge verb with its price.
A chart is a map you carry: one of the 25 campaign dungeons, a depth tier and up to four Marks that change how the run plays. Read it at the Cartographer's Lodge or the Adventure map to run that dungeon at that tier. Its boss is the prize: when it dies the chart is spent and pays out, and the loot you find on the way is worth more the harder you made it.
Where charts come from
| Source | What drops | Odds |
|---|---|---|
| Act V finale, first clear | 3 charts at your Pyre Tier, random dungeons | always |
| Campaign dungeon boss, Pyre Tier 2+ | A chart of that dungeon, at your Pyre Tier −1 to +1 | 35% |
| Endless Descent | A chart on every 5th floor's boss; tier = floor ÷ 10, rounded up | always |
| A chart's own boss | A chart at the same tier (a random dungeon), and a second one tier higher | always · 30% for the second (45% on a Pristine clear) |
| Breach Warden | A chart at the breach's tier | always |
| Ember Chest, Charts & Inks pool | 1 chart and 2 inks per roll | always |
| The Lodge (level 5) | A blank chart you draw yourself, any dungeon | gold + materials |
A chart that drops arrives with no Marks 50% of the time, one Mark 35% and two Marks 15%.
Charts only start dropping once you have beaten the Act V finale (or reached World Tier 2).
Tiers
A chart's tier is its depth, 1 to 16. Foes are level 20 + 8 per tier (plus one level for every two floors in), whatever your hero's level or world tier. Your difficulty mode applies as usual. A chart run is not a campaign clear: no first-clear rewards and no progress toward the next world tier.
| Tier | Monster level | From this tier on |
|---|---|---|
| Tier 1 | 28 | · |
| Tier 2 | 36 | · |
| Tier 3 | 44 | · |
| Tier 4 | 52 | · |
| Tier 5 | 60 | · |
| Tier 6 | 68 | boss drops an Emberforged piece |
| Tier 7 | 76 | · |
| Tier 8 | 84 | Pristine clears can drop a Survey Shard |
| Tier 9 | 92 | · |
| Tier 10 | 100 | · |
| Tier 11 | 108 | · |
| Tier 12 | 116 | · |
| Tier 13 | 124 | · |
| Tier 14 | 132 | · |
| Tier 15 | 140 | · |
| Tier 16 | 148 | · |
Item level: Chart loot's item level is the foe's level, +2 for each Pyre Tier above 1, plus your difficulty's item-level bonus, all stacked, up to item level 180.
Pristine and torn
- Pristine: kill the chart's boss without falling yourself. Everything on the run gets +25% item rarity, the chart's boss has a 45% chance (instead of 30%) to drop a second chart one tier higher, Tier 8+ clears can drop a Survey Shard, and your first Pristine clear of a dungeon at a new best tier earns a Survey point.
- Torn: fall once and the chart is torn. It is never lost: run it again from the first floor as often as you like. It just can't pay Pristine any more.
- A chart is only used up when its boss dies or you tear it up. There are no timers, and a death never costs you the chart.
- Every chart boss drops at least one chart at the same tier and a few Ember Inks (about 1.5 plus 0.25 per tier, split 3 Peril : 2 Boon : 1 Twist). At Tier 6 and up it also drops one Emberforged piece for your class.
- In co-op the party plays the leader's chart. Pristine is each player's own: a friend who falls loses theirs, not yours.
Marks and slots
4 Mark slots, 5 with a Survey Extra Mark Slot; the corrupted Mark takes one. Perils add Danger, and every point of Danger adds to the rewards printed on the chart. See Marks for every one.
| Rarity | Materials | Chart drops | Experience | |
|---|---|---|---|---|
| Per Danger point | +8% | +6% | +4% | +5% |
| Corrupted Mark | ×1.5 | ×1.5 | ×1.5 | ×1.5 |
| Pristine clear | +25% | · | · | · |
The Cartographer's Lodge
The Lodge stands on the Adventure map once the Act V finale has fallen. It has five levels; each opens more things to do with a chart.
| Level | Cost | Unlocks |
|---|---|---|
| 1 | free | The map table: read and run Charts; a chart stash. |
| 2 | 2,500 gold + 4 void crystal | Inking: spend an Ember Ink to add a random Mark of its kind; erase a Mark for its ink. |
| 3 | 6,000 gold + 3 forgotten soul | Scribe's choice: three inks of a kind, pick one of three Marks. |
| 4 | 12,000 gold + 6 forgotten soul | The Survey board: spend Survey points to shape what drops where. |
| 5 | 25,000 gold + 2 starshard | Scorch a chart (one gamble, odds printed) and draw blank charts of any dungeon. |
| Verb | Lodge level | Cost | What it does |
|---|---|---|---|
| Read & run | 1 | free | Run a chart's dungeon at its tier. The chart stash holds 40 charts. |
| Tear up | 1 | free | Pay out materials by tier (below) and 50% of its Marks' inks back. |
| Ink | 2 | 1 ember ink | Add one random Mark of the ink's kind (Peril, Boon or Twist). |
| Erase | 2 | 1 ink of the Mark's kind | Remove a Mark you inked. A corrupted Mark can't be erased. |
| Scribe's choice | 3 | 3 inks of one kind | Be offered 3 Marks of that kind and pick one. |
| Scorch | 5 | 1 starshard | Once per chart, a gamble: one third the tier rises by one, one third a corrupted Mark is burned on (a fifth slot, rewards ×1.5), one third nothing. |
| Draw a blank chart | 5 | gold + materials by tier (below) | Any dungeon, up to one tier above your best Pristine clear there. |
Tearing up and drawing
| Tier | Tearing up pays | A blank chart costs |
|---|---|---|
| Tier 1 | 6 iron scrap + 1 arcane essence | 500 gold + 4 arcane essence |
| Tier 2 | 8 iron scrap + 2 arcane essence | 2,000 gold + 8 arcane essence |
| Tier 3 | 10 iron scrap + 3 arcane essence | 4,500 gold + 12 arcane essence |
| Tier 4 | 6 arcane essence + 2 void crystal | 8,000 gold + 8 void crystal |
| Tier 5 | 7 arcane essence + 3 void crystal | 12,500 gold + 10 void crystal |
| Tier 6 | 8 arcane essence + 4 void crystal + 1 emberglass | 18,000 gold + 12 void crystal |
| Tier 7 | 9 arcane essence + 5 void crystal + 2 emberglass | 24,500 gold + 14 void crystal |
| Tier 8 | 8 void crystal + 2 forgotten soul + 3 emberglass | 32,000 gold + 16 void crystal + 3 forgotten soul |
| Tier 9 | 9 void crystal + 3 forgotten soul + 4 emberglass | 40,500 gold + 18 void crystal + 4 forgotten soul |
| Tier 10 | 10 void crystal + 4 forgotten soul + 5 emberglass | 50,000 gold + 20 void crystal + 5 forgotten soul |
| Tier 11 | 11 void crystal + 5 forgotten soul + 6 emberglass | 60,500 gold + 22 void crystal + 6 forgotten soul |
| Tier 12 | 8 forgotten soul + 7 emberglass | 72,000 gold + 14 forgotten soul + 2 starshard |
| Tier 13 | 9 forgotten soul + 8 emberglass | 84,500 gold + 16 forgotten soul + 3 starshard |
| Tier 14 | 10 forgotten soul + 2 starshard + 9 emberglass | 98,000 gold + 18 forgotten soul + 4 starshard |
| Tier 15 | 11 forgotten soul + 3 starshard + 10 emberglass | 112,500 gold + 20 forgotten soul + 5 starshard |
| Tier 16 | 12 forgotten soul + 4 starshard + 11 emberglass | 128,000 gold + 22 forgotten soul + 6 starshard |
See also