EO
Back to database

Database

Bonfire

Fuel, heat, ash, sacrifice tiers, and account bonuses.

Bonfire

Content below is based on the community guide. Always verify in-game.

Bonfire Tier 2
Tier 2
Bonfire Tier 4
Tier 4

Unlocking

Starting from the Bonfire: once you reach Act II, focus on completing your quests. When you reach the Bonfire questline, the system unlocks. The sections below explain each tab and how to progress your Bonfire.

Core mechanics

Just unlocking the Bonfire is enough — it passively generates Ash over time. You do not need to farm specific mobs in a specific area. You can add wood (prefer Act II Ironwood / Frost Wood) to boost income, but the higher the burn rate, the worse the wood-to-Ash conversion becomes.

Defeating each boss and sacrificing its heart permanently raises the Bonfire by 2 levels, and you can use fuel to push it up two tiers temporarily. With all three bosses done, it should stay permanently maxed — you only add extra fuel if you want more Ash.

Tab 1 — Fire

On the Fire tab, Fuel is on the left — this is where you feed the flame. Do not burn raw wood; always use Chadcoal (in-game name) for far more fuel value. Take Ironwood logs from the Act II tree, craft Chadcoal at the Smeltery, and feed your Bonfire.

Fire tab — key concepts
TermWhat it means
HeatYour Bonfire’s heating power. Higher is better. Heat points unlock the bonuses on the Bonuses tab: when you cross thresholds, you gain those bonuses while Heat is being fed.
Bonfire tierBonfire tier rises as you progress. Take each boss’s base item and sacrifice it at least once to unlock that sacrifice’s branches. That raises Bonfire tier; eventually you can keep the fire burning cheaply while still hitting high Heat scores for the best bonuses.
Fuel remainingHow long the Bonfire stays lit. When it reaches zero, the fire is out — refuel in time.
Ash (rate)Ash is spent on account upgrades (Ash talent tree and Sacrifice tabs). A lower “ash per second” value is better: e.g. 1 in 10 means a 10% chance that second to drop Ash — roughly one Ash every 10 seconds on average.

Fire panel — example snapshot

Example values from a screenshot: burn rate, discrete control steps, Heat, remaining fuel time, and ash chance per second.

Fields shown in the example
FieldExample value
Burn rate30%
Discrete steps (selector)0, 25, 50, 75, 100 (example selected: 25)
Heat3753
Fuel remaining1d 0h 23m
Ash chance per second1 in 15

Ash — numeric example (spreadsheet)

Reference table from the guide: time conversion and the relationship between chance (1/n), Ash percentage, and effective rate. The main row below uses a 1/7 example from the sheet; your in-game display may show a different n (e.g. 1/15 in the Fire snapshot). At 100% Ash, total seconds match the “Ash/s” rate; lower percentages scale from that base.

Main case (chance 1/7)
Chance (1/n)Time (h)Time (m)Time (s)Ash %Ash/s (approx.)
713.007804680014%6685.71
Percentage variants (same 46800 s base)
Ash %Ash/s (label)Value
50%1/223400
100%1/146800

Tab 2 — Bonuses

Bonuses on this tab become active based on your Bonfire Heat score — more Heat, more bonuses. They are temporary: they only apply while the Bonfire is lit.

Tab 3 — Ash (talents)

This is the Bonfire talent tree; it is account-wide. Early on, follow the line that improves Ash gained (More Ash).

Later in Act II, invest in other lines: Smeltery speed, fuel, burn reduction, and Auto Runes (runes go straight to the rune bag).

Ash Upgrades (reference)

Ash-tab upgrade tree: levels run left to right, with per-rank effect, number of ranks, and total bonus when fully ranked. Verify in-game.

Ash Upgrades by tree level
LevelUpgradeEffect (per rank)RanksTotal
1Attack IncreaseIncreases ALL ATK +30%130%
2Fuel EfficiencyReduces fuel consumption by 5%315%
2Attack IncreaseIncreases ALL ATK +30%130%
2Smeltery SpeedIncreases Smeltery Speed +10%110%
3Maximum FuelIncreases maximum fuel stored by 10000110000
3Crit DamageIncreases Crit Damage by 10%330%
3More AshIncreases your odds of obtaining ash by 15%345%
3Ash DiscountDecreases cost of all ash upgrades by 10%110%
3Fiery DefenceIncreasing Phys. Defence by 5420
3Smeltery SpeedIncreases Smeltery Speed +10%110%
3Hunter Cost ReductionDecreases cost of all hunter upgrades by 50%5250%
3MovespeedIncreases movement speed by 5%210%
4Crit ChanceIncreases Crit Chance by 1%44%
4Defence IncreaseIncreasing Phys. Defence by 5%525%
4Fuel EfficiencyReduces fuel consumption by 5%315%
4Attack IncreaseIncreases ALL ATK +30%130%
4Maximum FuelIncreases maximum fuel stored by 10000660000
4Rune overloadRunes now stack in the rune inventory1
4Attack IncreaseIncreases ALL ATK +30%130%
4More AshIncreases your odds of obtaining ash by 15%345%
4More AshIncreases your odds of obtaining ash by 15%345%
4Smeltery SpeedIncreases Smeltery Speed +10%330%
5Auto RunesDropped runes now automatically enter the rune inventory1
5Smeltery SpeedIncreases Smeltery Speed +7%428%

Tab 4 — Sacrifice

Sacrifice upgrade lines

A one-time boss sacrifice with each Act II boss material unlocks one of the three Sacrifice stages below. Each line below lists the in-game upgrade name, the stat it raises, and the material consumed per upgrade level.

Unlocked with: Mammoth Bitusk

Cutting Edge Technology

Stat
Woodcutting Power
Material
Icy Needles

Attack Wish

Stat
Attack
Material
Helmet Helmet

Wish of Luck

Stat
Crit. Chance
Material
Icegjost Doll

Food Domination

Stat
HP
Material
Distinguished Glasses

Wish of Fuel

Stat
Woodcutting Multiloot
Material
Ironwood Log

Unlocked with: Jotunn Eye

Mining Edge

Stat
Mining Power
Material
Nut

Wish of Knowledge

Stat
MP
Material
Pocketwatch

Wish of Hardness

Stat
Physicac Def
Material
Carrot

Wish of Speed

Stat
ATT Speed
Material
Troll Idol

Wish of Stone

Stat
Mining Multiloot
Material
Thorium Ore

Unlocked with: Maevath's Horn

Wish of Bars

Stat
Smith Speed
Material
Monacle

Pray of Luck

Stat
Crit DMG
Material
Slightly Damaged Glass

Wish of Wisdom

Stat
XP Multiplyer
Material
Matryoshka Doll

Wish of Riches

Stat
Drop Quality
Material
Spearhead

Wish of Gold

Stat
Gold Multiplyer
Material
Crystallised Yellow Substance

Account-wide upgrades: use each Act II monster’s base item plus Ash. Early on, it is worth pushing Attack and Tree Cutting toward 10/20 before going further.

With those upgrades plus a +11 Steel hatchet, you should be able to hit the Hit kill thresholds on Act II trees.

After the Ash talent tab is complete, you can keep sacrificing and maxing lines. Hard mode Act II and better cards can raise caps — sacrifice levels can go beyond 20/20.

Upgrade example (UI)

Guide card example: Cutting Edge Technology — boosts Woodcutting power. State: upgrade 13/20. Values: current x2.3 | next x2.4. Example costs: 15.1K of the leaf resource and 900 of the gold/ember resource. With this upgrade and a +11 hatchet, the guide states it should be enough to reach Hit kill thresholds on Act II trees.

Progression by stage

Novice

To start, you need maximum Heat bonuses for Act II. When you get there, you are still weak for the map, you just changed gear, and re-equipping takes time. Focus as fast as possible on Woodcutting power to get more Act II wood, craft Chadcoal, and feed the Bonfire — it makes a huge difference.

Intermediate

Your priority is the one-time boss sacrifice to unlock the three sacrifice stages. The more boss sacrifices you perform, the higher Heat becomes and Bonfire tier increases — you can then keep the Bonfire burning while spending much less and lasting much longer.

Hardcore

Your goal is to max sacrifice levels and continue in Hard mode Act II — levels will exceed 20/20. It is recommended to raise the ATK Bonfire to 20/20 and then the DEF Bonfire to 20/20; these two are your priority to advance character stats. Stats from sacrifice are account-wide.

See an error or have something to add? Become a contributor — corrections and additions help grow this project, and we credit helpers on the Contributors page.