Once Human Great One Bosses Guide: Locations & Mechanics

scarletrune |  Published: July 09, 2024
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In this comprehensive article, you will find out about Once Human Great One Bosses guide, including their locations and mechanics.

As you explore the haunting world of Once Human, you will face the formidable Great Ones. These powerful bosses dominate specific areas, presenting a significant challenge to even experienced survivors. To succeed, it’s essential to learn about each Great One’s abilities, vulnerabilities, and the hazardous environments they inhabit.

Once Human Great One Bosses Guide: Locations & Mechanics

Check out all of the locations and mechanics for Once Human Great One Bosses down below. This guide will provide valuable insights to help you overcome the odds while facing these powerful bosses.

Great One BossVisualLocation
ArachsiamOnce Human ArachsiamMonolith BL1103C
Foul ShadowhunterOnce Human Foul ShadowhunterMonolith BL082W
RabizexOnce Human RabizexMonolith BL7298X
TreantOnce Human TreantMonolith BL155E

Arachsiam


Once Human Arachsiam
Starry Studios

The Arachsiam hides in the large rock cave of Monolith BL1103C’s Almit-class Rift Space. This area contains preserved human structures of unknown age, suggesting a mysterious connection to an old hospital that defies normal physics. When entering the Rift, you must quickly notice the Arachsiam’s many eggs spread across the arena.

You also need to manage the toxin levels in the area while dealing with the Arachsiam. It’s essential to take protective actions promptly to avoid being overwhelmed. The Great One behaves erratically and unpredictably, challenging you to adapt quickly.

Foul Shadowhunter


Once Human Foul Shadowhunter
Starry Studios

The Foul Shadowhunter lives in the warped remains of Monolith BL082W’s Almit-class Rift Space, which used to be a sewage plant. This area has been altered by the Great One’s presence, defying the laws of physics. To defeat this powerful enemy, you must stay alert and react quickly to its attacks.

The Foul Shadowhunter attacks with tracking missiles and explosives that can quickly overwhelm unprepared players. To dodge its attacks, you can seek cover to minimize damage and focus on the boss’s gelatinous head tissue for critical hits. Stay mobile, use cover effectively, and take every chance to strike at its weak points.

Treant


Once Human Treant
Starry Studios

In the eerie Almit-class Rift Space of Monolith BL155E, you’ll find the Treant. This area holds remnants of Somerville, a town that disappeared in 2046. The Treant moves slowly but is dangerous due to its Tangled Vine-like tissue filled with destructive Stardust energy.

To defeat the Treant, you need to aim for the humanoid portion on its back. Use items and weapons to clear the Tangled Vines protecting it. Focus your attacks on the exposed weak spot while dodging the Treant’s powerful strikes. Stay persistent and strategic to overcome this ancient enemy.

Rabizex


Once Human Rabizex
Starry Studios

The unstable Rift Space in Monolith BL7298X is home to the fearsome Rabizex. To reach this area, you must offer living human sacrifices. The terrain is filled with rubble and remnants of demolished buildings, possibly from the Chalk Peak mines.

Behavioral analysis reveals that the Rabizex primarily attacks through a combination of clawing, tearing, and devastating Stardust energy release. To survive this encounter, you must quickly adapt to the Rabizex’s erratic patterns, avoiding its vicious strikes while exploiting any openings to deal damage.

Securement Silos: The Forbidden Zones in Once Human

Once Human Securement Silos
Starry Studios

In addition to the Great Ones, you will also encounter Securement Silos – forbidden zones scattered across the Once Human map. While these areas do not house Great Ones, they present their own set of challenges and dangers. Hidden behind their doors are these secret Rosetta facilities that serve as containment centers for Deviations.

Although the Deviants are gone, contamination in the Silos is still spreading. Elite soldiers from Rosetta’s Containment Squad guard the area, ready to eliminate any intruders.

These encounters with the Great One bosses will test players’ skills, strategic thinking, and ability to adapt in the battle. By studying each boss’s unique characteristics, exploiting their weaknesses, and making effective use of the environment and resources, you can rise to the challenge and triumph over these powerful enemies.

FAQs

  • How many Great Ones are there in Once Human?
    As of now, there are four Great Ones: Foul Shadowhunter, Treant, Arachsiam, and Rabizex.
  • What are Securement Silos in Once Human?
    • Securement Silos are forbidden zones that serve as containment facilities for Deviations.
  • Do players need to work together to defeat the Great Ones?
    • While not explicitly required, coordinated teamwork is highly recommended for tackling these challenging bosses.

About Author

Scarlet is an avid gaming and anime writer with a background in journalism covering both the topics, and fashion. She is a passionate writer since she was in high school. Shida is also a lover of cozy games like The Sims, Stardew Valley, Coral Island, and Fields of Mistria.