All Bosses
Bosses content for Hero Siege. Replace this overview text in the locale JSON — it feeds the category page title and description.
Hero Siege Inferno Acts Guide: the Nine-Act Route, Order and Preparation
How to run all nine acts on Hero Siege's Inferno: what to prepare, the fixed act order, the community single-session benchmark and the Uber layer waiting after.
Last updated: 10/5/2026
Hero Siege Anubis Guide: Act 3's Build Check and Anubis' Ankh
Anubis is where Hero Siege stops rewarding gear stacking and starts demanding a real build. What Act 3 checks, and why Anubis' Ankh matters to the Key of Terror.
Last updated: 10/5/2026
Hero Siege Fallen Damien Guide: Uber Damien's Unlock and Fight
Fallen Damien, the Uber form of Act 4's Damien: both unlock routes, the six-part Key of Terror recipe, and the mask, mirror and Blood Surge mechanics.
Last updated: 10/1/2026
Hero Siege Cthulhu Guide: Act 9's Final Boss and S10 Flagship
Cthulhu, Act 9's final boss in the Abyssal Realm: the Odin prerequisite, the Nightmare-to-Hell gate, the five documented abilities, and the opening cutscene tip.
Last updated: 10/1/2026
Hero Siege Amun Ra Guide: The Modern Uber's Purification Exam
Uber Amun Ra is built around one action — purifying the curse before it drains your health bar. Full unlock chain, material routes and fight preparation.
Last updated: 10/5/2026
Hero Siege Gabriel Guide: The Modern Uber Still Being Documented
Uber Gabriel's full unlock chain and location are not yet community-documented. Here is the confirmed loot, the known entry condition, and how to prepare anyway.
Last updated: 10/1/2026
Hero Siege Gurag Guide: Act 1's First Boss and the Key of Terror
Gurag is the first wall Hero Siege puts in front of a new player — and the source of Gurag's Soul, the first ingredient of the Key of Terror. What Act 1 teaches.
Last updated: 10/1/2026
Hero Siege Karp King Guide: Act 5's Guardian and Its Ingredient
Karp King guards Act 5's Land of the Karp Kingdom, and his Bellybutton is a Key of Terror ingredient. What the fight's rhythm asks and why it matters.
Last updated: 10/1/2026
Hero Siege Luna Guide: The Possessed Prophet of Vanaheim
Uber Luna takes two routes into Vanaheim and ends in a plot twist — the quest giver becomes the boss. Full unlock flow, fight skills and the HP reality.
Last updated: 10/1/2026
Hero Siege Mevius Guide: Act 7 and the DLC Wall That Fell
Mevius once sat behind the Wrath of Mevius DLC before the gate was removed. The history, and what Act 7 actually tests in late-campaign endurance.
Last updated: 10/1/2026
Hero Siege War God Sung Lee Guide: The Melee-Range Exam
War God Sung Lee explained: the 50 Battle Fragments entry, the Earthquake spike-ball bounce, and how Rain of Ruin and Summon Weapon punish greedy positioning.
Last updated: 10/1/2026
Hero Siege Uber Reaper Guide: The Fight That Denies Sustain
Uber Reaper explained: entering Reaper's Breach, the minus-100% healing debuff, the Shadow Lantern invulnerability, and how to win without recovery.
Last updated: 10/1/2026
Hero Siege Captain Grimtide Guide: Season 10 Uber Boss Preparation
Captain Grimtide — one of Season 10's three new Uber bosses — from the preparation angle: the checklist your build should pass and what it adds to your rotation.
Last updated: 9/29/2026
Hero Siege Blood Maiden Guide: Season 10 Uber Boss and Farming Value
Blood Maiden — one of Season 10's three new Uber bosses — through the farming lens: why the new layer anchors rotations, what its loot is worth, how to earn a kill.
Last updated: 9/29/2026
Hero Siege Modern Uber Guide: Gabriel, Amun Ra and Luna Explained
The modern Uber trio of Hero Siege — Gabriel, Amun Ra and Luna: roster position, how the fights are approached, and how they farm in Season 10.
Last updated: 9/29/2026
Hero Siege Phantom Leviathan Guide: Season 10's Deep Uber Boss
Phantom Leviathan — one of Season 10's three new Uber bosses: roster position, what the community has documented so far, and how to prepare a build for the fight.
Last updated: 9/29/2026
Hero Siege Act Bosses Guide: All 9 Acts and Their Campaign Bosses
Every act boss in Hero Siege explained: how the nine-act boss ladder works, how fights scale from Normal to Inferno, and how to prepare for each act's check.
Last updated: 9/16/2026
Hero Siege Classic Uber Bosses: Damien, Reaper and Sung Lee Guide
The original Hero Siege Uber trio explained: Damien, Reaper and Sung Lee fight fundamentals, what each encounter checks, and how to prepare for your first kills.
Last updated: 9/16/2026
Hero Siege Uber Bosses Guide: Season 10's Three New Ubers and the Classic Roster
Every Uber boss explained: Season 10's three new Ubers, the Gabriel, Amun Ra and Luna fights, and the classic Damien, Reaper and Sung Lee trio.
Last updated: 9/15/2026