A huge and deep dungeon system makes The Elder Scrolls Online (ESO) a tough and rewarding game for players. Every dungeon has been painstakingly created, with distinct settings, dangerous traps, and powerful bosses. Players face a variety of bosses in various dungeons, each with unique skills that need to be approached strategically. ESO’s dungeons offer a range of difficulty settings to accommodate players of all skill levels. One of the more difficult base game dungeons in ESO is called Darkshade Caverns II. Its last boss is the enormous Dwarven spider known as the Engine Guardian. Although it is not very hard to defeat, it has certain terrible powers that can take opponents by surprise, such as one that causes the air to become filled with poisonous gas. In this ESO Engine Guardian Boss guide, we will let you know everything about the boss and how to defeat it as well.
Quest
The quest in which you’ll get to encounter this dungeon is called ‘What was Lost.’ You must defeat the ESO Engine Guardian Boss to advance in this quest. Another Quest is Pledge: Darkshade II: Venture through Darkshade Caverns II and come back undaunted.
Skills & Abilities of the ESO Engine Guardian
The Engine Guardian is resistant to all crowd control effects because it is a boss-class creature. This fight truly doesn’t need a tank. Rather, it will navigate the core pillar on its own. The boss will randomly choose a new “phase” to enter every quarter round; the phase’s colour designates this. Two of the same phases can occur consecutively, but never three.

Fire Stage
Boss glows red during the Fire Phase.
Burst of flame
The boss surrounds itself with a brief jet of flame that deals extremely high flame damage to any players struck by it over time. Staying inside range will help players avoid getting hit.
Burning Volley
Red circles represent heavy flame damage when the boss throws fireballs at random players.
Lightning Phase
In the lightning phase, the boss emits a blue glow.
Shocking Bolt
When a boss enters the line of sight, it deals heavy shock damage. To avoid this, players might hide behind the main pillar.
Summon Dwarven Sphere
Concurrently, the boss calls forth three Dwarven Spheres to launch an assault on the group. These spheres should be eliminated right away because they deal considerable damage.
Poisoning Phase
The boss glows green when it’s in the poison phase.
Poisoned Air
All players in the room suffer significant poison damage from the ESO Engine Guardian boss over time. The levers in the centre of the room can be used to stop this, but players can ignore them and heal through the damage instead. If the dungeon is in veteran mode, finishing the fight without using any of the levers is an optional target for achievement, and the dungeon earns an award.
How to defeat the ESO Engine Guardian boss?
- The door will close, and the Engine Guardian will awaken upon the first player entering the room. Its three stages are Lightning (blue), Poison (Green), and Fire (Red).
- The boss will typically move around the room, but to change phases, it will frequently sit down! It is also more open to your attacks while it is seated. It will make sense to put off using your Ultimate moves till later.
- The key is range. Everyone remains in the centre, dealing distant damage to the boss. This boss casually strolls around, so there’s no need to actively provoke him.
- It will twist its head around and launch a flamethrower assault when in the red phase. To prevent damage, manoeuvre around the flame or block it when it comes your way. It can also launch fire projectiles that do AOE damage and burst when they hit the ground.
- It will use shock beams to assault and call out Dwarven Spheres during the Blue phase. Get rid of the spheres as quickly as you can to prevent them from overwhelming you! They are also capable of dealing great damage with their own unique attacks. Killing the spheres first is your objective in this phase.
- Lastly, the green phase is arguably the most lethal. Poison permeates the space and gradually harms you; you can have an issue if the healer is unable to keep up particularly if spheres are present. Nevertheless, by pulling all four of the room’s levers, you may neutralise the poison.

Achievements you’ll get from ESO Engine Guardian boss fight
Darkshade Caverns II Conqueror: In the Veteran mode of Darkshade Caverns II, defeat the Transmuted Hive Lord, Grobull the Transmuted, and The Engine Guardian.
Deadly Engineer: In the Veteran mode of Darkshade Caverns II, defeat The Engine Guardian without having any members of your group activate an engine lever.
Darkshade Caverns II Assassin: In twenty minutes, defeat the Fallen Foreman, the Engine Garrison, the Transmuted Hive Lord, the Transmuted Alit, Grobull the Transmuted and the Engine Guardian in the Veteran mode Darkshade Caverns II. After confronting the first set of kwama, the timer begins.
Darkshade Caverns II Survivor: In the Veteran mode of Darkshade Caverns II, defeat The Fallen Foreman, Transmuted Alit, Transmuted Hive Lord, the Engine Garrison Grobull the Transmuted, and The Engine Guardian without losing your group member.
Darkshade Caverns II Vanquisher: Conquer the Engine Garrison, Grobull the Transmuted, the Engine Guardian, the Fallen Foreman, and the Transmuted Hive Lord.
Conclusion
Slaying the Engine Guardian is a real team effort and skill test. Players need to be able to communicate clearly, adjust to the boss’s shifting attacks, and carry out their plans precisely. Through cooperation and taking advantage of the guardian’s weaknesses, adventurers can defeat this powerful opponent and reap the benefits. Also, don’t forget to purchase The Elder Scrolls Online (ESO) Gold from U7BUY to help you out in defeating the Engine Guardian boss.