The First Berserker: Khazan: Boss Locations & Interactive Tracking Guide

The First Berserker: Khazan features 38 boss encounters — 16 mandatory story bosses that block progression and 22 side mission bosses that reward gear, Phantom companions, and in two cases determine which of the game's three endings the player reaches.

Every arena is pinned at its exact coordinate on MapMaster's The First Berserker: Khazan interactive maps — all 40 hand-drawn originals built exclusively by MapMaster.

Navigate directly to any boss position or its nearest Blade Nexus for farming without replaying the full area.

Two Boss Types in The First Berserker: Khazan

Story bosses are mandatory encounters that must be defeated to progress the main campaign.

Each has a dedicated loot table — a set of Armor set pieces, a unique boss material used for crafting, and a fixed Lacrima and Gold reward on first defeat.

Several story bosses also trigger permanent feature unlocks: Bearius in Spider's Tomb - Blacksmith's Heirloom unlocks Blacksmith Qazumaka (the crafting NPC who makes all armor sets), and Maluca in Nadin Quarry unlocks Khazan's Devil Transformation.

Side mission bosses are optional encounters accessed through bonus missions accepted from NPCs in The Crevice. Most unlock after completing the associated main mission in their area.

They drop valuable gear and Epic crafting materials, and several unlock Phantom companions — passive stat-boosting spirits equipped at any Blade Nexus.

All Side Missions associated with side mission bosses are tracked in the Side Mission guide.

All 16 Story Bosses: Encounters, Drops, and Key Unlocks

The story boss sequence runs from Charnak Mountain Range through to the Vitalon Capital:

• Yetuga — Mount Heinmach. First boss. Drops Frozen Mountain Set pieces, Frozen Mountain Ruler's Horn, 4,800 Lacrima.
• Blade Phantom — Stormpass. Defeating him and allying with him opens The Crevice hub and all fast travel.
• Revenant of Adversity — Embars Ruins. Triggered mid-mission after stopping a Netherworld device. Fought before Viper.
• Viper — Embars Ruins. Two-phase fight. Drops Soul Eater Set pieces and the Netherworld Mineral boss material.
• Volbaino — Phraugh Village. A Dragonkin commander. Drops Furious Bandit Set pieces and Bandits' Spoils.
• Bearius — Spider's Tomb - Blacksmith's Heirloom. Unlocks Blacksmith Qazumaka and the full armor crafting system.
• Aratra — Skoffa Cave. Spider boss. Drops Devourer of Darkness Set pieces and Man-Eating Spider Leg. Community fastest kill: 13 seconds.
• Rangkus — Palemion Citadel. Drops Beastslayer Set pieces and Beast's Jawbone.
• Elamein — El Ravaca Village. Fought twice — the second encounter triggers after interacting with a mechanism in the same room.
• Shactuka — Linon Mine. Community fastest kill: 16 seconds.
• Yeturak — Mine No. 2 Workyard - Escaping Linon Mine. Enhanced Yetuga variant with plague moves added.
• Sergei — Path to the Camp - Last Command. Mandatory for the prisoner rescue storyline.
• Trokka — Lake City Aldevir. Drops Drowned Witch Set pieces, Witch's Tentacle, and Trokka's Letter.
• Failed Creation — Aldevir Central District - Lacrima. Laboratory creature boss.
• Bellerian — Rephalan Mountains. After defeat, speak to her to recruit her to The Crevice as a functional NPC.
• Skalpel — Vaisar Gate. Carries a demon's coffin on his back.
• Princess Ilyna — Rovelion Imperial Theatre. Drops Unending Tragedy Set pieces, and Princess's Mirror.
• Hismar — Capital City Vitalon. The Berserk Dragon from the game's prologue story — an encounter the narrative has been building since the opening cutscene.
• Reese — Great Temple. Drops Faded Memories Set pieces, and Tears of Farewell. Community fastest kill: 17 seconds.
• Ozma — Imperial Palace. Final boss and Khazan's former closest friend. Three possible endings depend on the choices made before reaching him.

Side Mission Bosses: Phantom Unlocks and Ending Requirements

Side mission bosses unlock the Phantom companion system and, in two cases, directly determine the game's ending. Key encounters:

Keshta the Unyielding (Stormpass) — the first side mission boss, fought immediately after completing the Stormpass main mission. Defeating Keshta unlocks the Phantom Abilities system itself. Without this fight, Phantom companions cannot be equipped at Blade Nexus.

Reaper (Wastus Canyon - Atlante the Precise) — unlocks the Atlante the Precise Phantom on defeat. This is one of the most mechanically demanding side encounters in the game.

Remnant of Elamein (Ruined Citadel - Transcendental Sword) — completing this side mission is required for the Truth ending and the Chains of Fate ending. Missing this locks the player into the normal ending only.

Netherworld Jocko + Netherworld Tigron + Netherworld Aratra (Vitalon Underground Passage - Charon's Chains) — the only three-boss simultaneous fight in the game, all three Netherworld variants attacking at once. Completing Charon's Chains alongside Transcendental Sword is required for the Chains of fate darkest ending, reached by only 25% of players.

Corrupted Creation + Mutated Rosha (Vaisar's Hidden Chamber - Crimson Trace) — the only dual-boss simultaneous fight in the guide.

All side mission bosses and their ending implications are documented in the Trophy guide for players targeting specific completion achievements.

Three Special Boss Mechanics Worth Knowing

Viper's two phases — Viper in Embars Ruins transitions mid-fight. The second phase adds new abilities and a different attack pattern to an already multi-weapon moveset. Both phase transitions are noted in the checklist entry.

Elamein's double encounter — Elamein in El Ravaca Village is the only story boss fought twice in the same area. The second encounter triggers after Khazan interacts with a mechanism in the same room — the mechanism's position is cross-linked in the checklist.

Progressive Lacrima on death — unique to Khazan among soulslike games: dying during a boss fight after dealing sufficient damage deposits partial Lacrima at the boss entrance. This is claimable immediately on respawn without clearing the area again, making aggressive attempts financially sensible.

Boss Farming: How to Replay Any Encounter

Every boss — story and side — can be refought after their first defeat by replaying the mission via the Spectral Portal in The Crevice.

Replaying a mission doesn't require completing the full area: teleport to the Blade Nexus nearest the boss arena, enter the fog gate, and fight.

Boss farming is the primary method for completing Armor sets — each story boss has a unique special crafting material that drops randomly, required by Blacksmith Qazumaka alongside the set's Scroll to craft the full set.

Danjin's shop begins stocking Epic crafting materials as the campaign progresses — an alternative to boss farming for specific materials once his inventory expands.