Adeptus Mechanicus – Warhammer 40k Guide

The Adeptus Mechanicus stands as the embodiment of technological mastery and ancient knowledge in the Imperium. These mysterious tech priests and their loyal Skitarii soldiers harness the power of long-lost technologies to wage war across the galaxy.

Driven by an insatiable quest for understanding the Omnissiah’s mysteries, they are both revered and feared for their unique blend of faith and science.

Join us as we explore the mechanical might and esoteric wisdom of the Adeptus Mechanicus, whose machines and doctrines keep the Imperium’s forge worlds running.

Smoking buildings in the background, an Adeptus Mechanicus trudges on alone.

Who Are the Adeptus Mechanicus?

The Adeptus Mechanicus, also known as the Cult Mechanicus, is a secretive and powerful organisation originating for Mars, that governs the technological and scientific needs of the Imperium.

Originating from the forge world of Mars, they are dedicated to the worship of the Omnissiah, the Machine God, whom they believe resides in all technology. They view machines as sacred, and their Tech-Priests strive to unlock ancient knowledge long lost in the Age of Strife.

At the core of the Mechanicus hierarchy is the Tech-Priest Dominus, a figure steeped in both faith and technology, leading their forces to battle with legions of Skitarii warriors and imposing battle robots. Their relentless march to recover ancient technology often brings them into conflict with Xenos and traitor space marine forces.

The armies of the Adeptus Mechanicus are composed of different subgroups, each with their own focus:

  • Skitarii Legions: Cybernetic soldiers that carry out the will of the Tech-Priests, armed with powerful weapons and unwavering loyalty.
  • Battle Servitors and Kastelan Robots: Hulking constructs designed for war, these machines combine ancient technology with modern warfare techniques.
  • Sicarian Infiltrators: Stealth units adept at disruption and sabotage, often operating behind enemy lines.
    United by their shared reverence for machines, the Adeptus Mechanicus combines the power of faith and technology to secure victory for the Imperium.

What are Adeptus Mechanicus’ Army Strengths?

The Adeptus Mechanicus is a faction that excels in combining firepower and resilience with technological versatility. Their ability to field durable, hard-hitting units makes them a force to be reckoned with on the battlefield.

Here are a few key strengths of the Adeptus Mechanicus army:

  • Powerful Ranged Units: The Adeptus Mechanicus boasts devastating long-range capabilities, from the heavy guns of Onager Dunecrawlers to the precise firepower of Skitarii Rangers.
  • Strong Synergy: Tech priests can augment their forces with prayers and canticles, providing buffs that increase their durability, accuracy, and lethality.
  • Durability: Mechanicus units, especially the Skitarii and Kastelan Robots, are tough to take down, providing a solid frontline that can absorb damage while dealing it back in return.
  • Versatile Unit Loadouts: Adeptus Mechanicus units can be tailored to fit different strategies, allowing players to adapt to their opponent’s strengths and weaknesses.

However, their units can be costly in points, meaning you’ll need to choose your forces carefully, and while they excel in firepower, they often lack mobility compared to faster factions. Strategic positioning is key when playing Adeptus Mechanicus.

Mechanicum vs Tyranids battle - swords swinging, guns firing, death on all sides.

Where Should Beginners Start?

If you’re new to Adeptus Mechanicus, here are some key models to consider, along with why they’re essential for beginners:

  • Skitarii Rangers/Vanguard: These versatile troops are your core units, excelling in long-range firefights and holding objectives. They’re a great starting point for any Adeptus Mechanicus army.
  • Onager Dunecrawler: A mobile fire platform that can bring devastating firepower to the battlefield, the Dunecrawler is essential for learning how to control lanes of fire and provide cover to advancing units.
  • Tech-Priest Dominus: Your command unit, the Dominus is a must-have for its ability to repair vehicles, enhance unit accuracy, and lead your army with powerful canticles that can turn the tide of battle.
  • Kastelan Robots: These hulking battle robots are a great way to learn about how durable units can act as both damage sponges and high-damage dealers. They can be customized for ranged or melee combat, allowing for strategic flexibility.

Starting with these models provides a strong foundation for your Adeptus Mechanicus force, giving you the tools to understand their strategic depth and unlock their technological might on the battlefield.

How to Paint Adeptus Mechanicus

Painting Adeptus Mechanicus models is a rewarding challenge, offering the opportunity to create vibrant, machine-heavy designs with intricate details. Here’s a guide to getting started with specific colour schemes and techniques:

Colour Scheme

Mars (Red and Metal)

  • Base Coat: Start with a spray of Leadbelcher for the metal areas and Mephiston Red for the robes.
  • Layering: Apply Nuln Oil wash to the metallic parts for shadowing, and use Evil Sunz Scarlet to bring out highlights on the red robes.
  • Details: Pick out mechanical parts with Balthasar Gold and cables with Abaddon Black. You can add green details with Warpstone Glow for a striking contrast.

Ryza (Orange and Silver)

  • Base Coat: Use Jokaero Orange for the armor and Leadbelcher for metallic sections.
  • Highlighting: For the orange, use Troll Slayer Orange for highlights. Add a Runefang Steel layer to the metallic parts for added depth.
  • Details: Paint weapon casings black and pick out cables with bright blues or reds for visual variety.

Metalica (White and Red)

  • Base Coat: Use Corax White spray for a clean white base, and pick out key details in Khorne Red.
  • Highlighting: Use White Scar to bring out highlights on the armour and add Retributor Armor for gold details.
  • Details: Use Agrax Earthshade to shade recesses and metallic areas, and pick out finer details with a lighter brush stroke for a polished finish.
Painted model of Adeptus Mechanicus - side on, painted blue body and gold trims on legs. Warrior riding machine.

Adeptus Mechanicus Painting Techniques

  • Base Coating: Apply a smooth and even base coat with a spray primer, such as Leadbelcher for metal-heavy schemes, or Corax White for a cleaner look.
  • Washing: Use washes like Nuln Oil to deepen the metallic areas or recesses in the armor. Apply controlled washes to avoid pooling on flat surfaces.
  • Drybrushing: For mechanical parts, a dry brush of Stormhost Silver can help emphasize the wear and tear of machines, giving them a battle-worn look.
  • Edge Highlighting: Use a fine detail brush to highlight sharp armor edges with brighter tones, like White Scar or Stormhost Silver, to give a striking finish to your models.
  • Contrast Paints: Citadel Contrast Paints can help speed up painting time, especially when shading large areas like robes or cables. For example, Gryph-Charger Grey works well for Mechanicus cloaks over a white base coat.

Image Attribution

Image 1 – Wh40K: Adeptus Mechanicus: Skitarii Marshall (https://www.deviantart.com/stugmeister/art/Wh40K-Adeptus-Mechanicus-Skitarii-Marshall-995991731) by StugMeister (https://creativecommons.org/licenses/by-nc-nd/3.0/)

Image 2 – Mechanicus vs Tyranids (https://www.goodfon.com/fantasy/wallpaper-warhammer-40-000-adeptus-mechanicus-tyranids-techpriest.html) by maria345 (https://creativecommons.org/licenses/by-nc/4.0/)

Image 3 – Sydonian Dragoon Adeptus Mechanicus – Games Workshop (https://www.flickr.com/photos/61490450@N08/18794386823) by Andy Moore (https://creativecommons.org/licenses/by-nc-nd/2.0/)