BLACK SOULSSpoiler-controlled player guide

Monster Behemoth

BLACK SOULS · Early game

Monster Behemoth dark fairy-tale boss guide illustration inspired by Biblical legend — Behemoth
Game
BLACK SOULS
Defeated By
46.1% of players
Required
Main route
Origin
Biblical legend — Behemoth

The land-titan of scripture, closing out the opening act at 46.1%. The first fight that's purely about surviving scale.

Where and when

Monster Behemoth begins in Jacob's Mine. Losing the first encounter sends it to the tower and causes collateral NPC deaths, while winning avoids that failure state. The boss acts twice, uses fire breath and gains a dispellable half-HP buff.

Location

Jacob's Mine for the first encounter; tower relocation after a loss.

Prerequisites

  • Reach Jacob's Mine.
  • Save before the first attempt if Rapunzel, the merchant and Chameleon must survive.
  • Bring Dispel or an equivalent buff-removal answer.

Attack cues and responses

Cue / pattern
Behemoth takes two actions in a round.
Budget healing for two hits and avoid plans that survive only one enemy action.
It prepares or uses fire breath.
Use fire mitigation or evasion and recover before the second action can follow.
Around half HP, Behemoth applies a power increase.
Dispel the buff promptly rather than racing the empowered two-action phase.

Loadout

  • Dispel or reliable buff removal
  • Fire mitigation
  • Healing sized for two enemy actions
  • A branch save before the first attempt

Rewards

  • Approximately 25,500 souls on the first documented encounter
  • A later encounter source records a 60,000-soul result
  • Monster Behemoth achievement

Route risks

  • Losing the mine encounter relocates Behemoth to the tower and kills Rapunzel, the merchant and Chameleon.
  • First and relocated encounter rewards must be captured separately; the reviewed sources report different totals.

First-hand verification backlog

Capture these in one documented Steam-version run before this page becomes indexable:

  • Jacob's Mine entrance and pre-fight NPC states
  • Two-action round, fire breath and half-HP buff
  • Successful Dispel
  • Loss relocation and NPC consequences on a branch save
  • First and later reward totals

Context and planning notes

Behemoth is a stat wall by design — the opening run's final exam in whether you've been leveling and upgrading or just surviving. If the numbers don't work, the surrounding areas still have levels to give.

Big single targets favor debuffs and defensive buffs more than any fight before them; this is a good place to learn what your support skills actually do.

After Behemoth and The Beanstalk Jack, the game stops teaching. The middle acts assume everything the first twelve bosses taught.

Related Achievements

Monster Behemoth
Full BS1 Boss OrderAll Bosses