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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

Where charts come from
SourceWhat dropsOdds
Act V finale, first clear3 charts at your Pyre Tier, random dungeonsalways
Campaign dungeon boss, Pyre Tier 2+A chart of that dungeon, at your Pyre Tier −1 to +135%
Endless DescentA chart on every 5th floor's boss; tier = floor ÷ 10, rounded upalways
A chart's own bossA chart at the same tier (a random dungeon), and a second one tier higheralways · 30% for the second (45% on a Pristine clear)
Breach WardenA chart at the breach's tieralways
Ember Chest, Charts & Inks pool1 chart and 2 inks per rollalways
The Lodge (level 5)A blank chart you draw yourself, any dungeongold + 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.

Chart tiers
TierMonster levelFrom this tier on
Tier 128·
Tier 236·
Tier 344·
Tier 452·
Tier 560·
Tier 668boss drops an Emberforged piece
Tier 776·
Tier 884Pristine clears can drop a Survey Shard
Tier 992·
Tier 10100·
Tier 11108·
Tier 12116·
Tier 13124·
Tier 14132·
Tier 15140·
Tier 16148·

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.

What each point of Danger adds (printed on the chart)
RarityMaterialsChart dropsExperience
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.

LevelCostUnlocks
1freeThe map table: read and run Charts; a chart stash.
22,500 gold + 4 void crystalInking: spend an Ember Ink to add a random Mark of its kind; erase a Mark for its ink.
36,000 gold + 3 forgotten soulScribe's choice: three inks of a kind, pick one of three Marks.
412,000 gold + 6 forgotten soulThe Survey board: spend Survey points to shape what drops where.
525,000 gold + 2 starshardScorch a chart (one gamble, odds printed) and draw blank charts of any dungeon.
What the Lodge can do to a chart
VerbLodge levelCostWhat it does
Read & run1freeRun a chart's dungeon at its tier. The chart stash holds 40 charts.
Tear up1freePay out materials by tier (below) and 50% of its Marks' inks back.
Ink21 ember inkAdd one random Mark of the ink's kind (Peril, Boon or Twist).
Erase21 ink of the Mark's kindRemove a Mark you inked. A corrupted Mark can't be erased.
Scribe's choice33 inks of one kindBe offered 3 Marks of that kind and pick one.
Scorch51 starshardOnce 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 chart5gold + materials by tier (below)Any dungeon, up to one tier above your best Pristine clear there.

Tearing up and drawing

Tearing up and drawing, by tier
TierTearing up paysA blank chart costs
Tier 16 iron scrap + 1 arcane essence500 gold + 4 arcane essence
Tier 28 iron scrap + 2 arcane essence2,000 gold + 8 arcane essence
Tier 310 iron scrap + 3 arcane essence4,500 gold + 12 arcane essence
Tier 46 arcane essence + 2 void crystal8,000 gold + 8 void crystal
Tier 57 arcane essence + 3 void crystal12,500 gold + 10 void crystal
Tier 68 arcane essence + 4 void crystal + 1 emberglass18,000 gold + 12 void crystal
Tier 79 arcane essence + 5 void crystal + 2 emberglass24,500 gold + 14 void crystal
Tier 88 void crystal + 2 forgotten soul + 3 emberglass32,000 gold + 16 void crystal + 3 forgotten soul
Tier 99 void crystal + 3 forgotten soul + 4 emberglass40,500 gold + 18 void crystal + 4 forgotten soul
Tier 1010 void crystal + 4 forgotten soul + 5 emberglass50,000 gold + 20 void crystal + 5 forgotten soul
Tier 1111 void crystal + 5 forgotten soul + 6 emberglass60,500 gold + 22 void crystal + 6 forgotten soul
Tier 128 forgotten soul + 7 emberglass72,000 gold + 14 forgotten soul + 2 starshard
Tier 139 forgotten soul + 8 emberglass84,500 gold + 16 forgotten soul + 3 starshard
Tier 1410 forgotten soul + 2 starshard + 9 emberglass98,000 gold + 18 forgotten soul + 4 starshard
Tier 1511 forgotten soul + 3 starshard + 10 emberglass112,500 gold + 20 forgotten soul + 5 starshard
Tier 1612 forgotten soul + 4 starshard + 11 emberglass128,000 gold + 22 forgotten soul + 6 starshard

See also