Once Human - Hardest Bosses Ranked

In this guide, we will rank the most difficult bosses in Once Human so you can prepare for your next battle.

Once Human - Hardest Bosses Ranked
Starry Studio

Once Human will test your survival skills like never before, requiring you to build bases, and keep your character hydrated and well-fed while defeating multiple enemies at the same time.

There are five main bosses in the game, and you can reach all of them by simply following the main storyline. Each one of these monsters has its unique combat mechanics, and this guide will teach you how to deal with them.

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Once Human Hardest Bosses

Once Human - Hardest Bosses Ranked
Starry Studio

The main bosses in Once Human are known as the Great Ones. They are the most powerful creatures in the game, and they control specific areas on the map.

  • Ravenous Hunter
  • The Treant
  • Arachsiam
  • Rabizex
  • Mensdevoran

The good news is that each boss has weaknesses that you can take advantage of if you have the necessary information beforehand.

Ravenous Hunter

Once Human - Hardest Bosses Ranked
Starry Studio

Ravenous Hunter is the first and easiest boss that you have to defeat, and he serves as good preparation for what's to come. When you enter the Monolith of Greed in Dayton Wetlands, you will see him in the middle of the room. Once he has taken some damage, he will teleport to the back and become immune to your attacks. Kill the spawn pods, and he will come back to his previous position.

First, destroy the Gatling weapon to get rid of his shield. Try to stay as far away as possible, ideally behind a cover, while shooting at him. Once you have destroyed the shield, aim for his yellow head. This is the weak spot that will allow you to take him down fast.

Treant

Once Human - Hardest Bosses Ranked
Starry Studio

Treant is located at the Gaia Cliff Monolith in the Broken Delta region and he is basically a big tangle of branches and vines. You need to destroy all of them first to break the monster's invincibility. After that, you can attack Treant himself.

Always aim for the head at the front. However, if you want to deal even more damage, target the female humanoid on his back; she is his weak point. While you're fighting, make sure to avoid the white orbs and laser beams.

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Arachsiam

Once Human - Hardest Bosses Ranked
Starry Studio

Arachsiam is a spider-like creature that can capture you in her giant webs, dealing damage and restricting your movements at the same time. Although it is difficult to avoid the attack, you can still see it coming when she shakes her body. Be careful with her rush attack as well; thankfully, she screeches right before performing the move, so you can be prepared.

To attack the monster, try to get behind her. This is where you will find the glowing purple spots that are her weak point. Try to attack only when she needs time to recharge her abilities. You can find this boss in the Mirage Monolith in Iron River.

Rabizex

Once Human - Hardest Bosses Ranked
Starry Studio

Rabizex has fangs and sharp claws that he uses to defeat anyone who enters the Monolith of Thirst in Chalk Peak. He can also attack at range, using a powerful release of Stardust energy.

Aim at any part of his body whenever you can, but keep in mind that the best strategy in this case is defense. Be aware of his movements at all times and be ready to immediately hide whenever he attacks because he is very powerful and doesn't need a lot of hits to take you down.

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Mensdevoran

Once Human - Hardest Bosses Ranked
Starry Studio

Mensdevoran is the most difficult boss to defeat, and his attacks are extremely strong. He can slam you down with his hands and sweep the room with your body. Remember to avoid the shock waves he causes, because this is what allows him to catch you in the first place.

You will soon notice glowing spots on his body; these are his weak spots. Avoid all incoming attacks and aim at these points. Be aware that the longer the fight takes, the more the arena will shrink. He is located at the Forsaken Monolith in Red Sands.

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Once Human Hardest Bosses Locations Summary

Once Human - Hardest Bosses Ranked
Starry Studio

Without a doubt, there are so many bosses in Once Human that keeping track of their locations might turn into an overwhelming task. Here is a list of the hardest bosses and where to find them on the map.

Boss Location
Ravenous Hunter Monolith of Greed, Dayton Wetlands
Treant Gaia Cliff Monolith, Broken Delta
Arachsiam Mirage Monolith, Iron River
Rabizex Monolith of Thirst, Chalk Peak
Mensdevoran Forsaken Monolith, Red Sands

Have fun and good luck on your next adventure! For more information about Once Human, you can check out this article.

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