Where to Find Mechanicum Miniatures

The Mechanicum are one of the most visually distinctive factions in the Horus Heresy setting — the secretive Machine Cult of Mars, fielding war cohorts of cyborg-priests, enslaved thralls, and terrifying battle-automata. On the tabletop, they play unlike any Space Marine Legion: rather than massed infantry, you're building around powerful robotic constructs, skitarii-like infantry, and hulking siege machines that feel genuinely alien compared to the rest of 30K. Whether you're drawn to the lore or simply want an army that turns heads at the table, the Mechanicum are an outstanding choice.

What to Look For

Because the Mechanicum span such a wide range of unit types, miniatures for this faction need to capture a very specific aesthetic — somewhere between ancient Roman engineering and grotesque bio-mechanical horror. Key things to look for:

Correct base sizes: Infantry units like Thallax typically use 32mm bases, while larger automata like Thanatars need 60mm or larger. Check your Horus Heresy army list carefully before basing up.
Resin quality and detail: Much of the Mechanicum range is cast in high-quality resin rather than plastic. Look for crisp hydraulic cabling, exposed mechatendrils, and layered plating — these details define the faction's visual identity.
Cohesive visual language: The best Mechanicum collections mix the organic and mechanical convincingly. Thralls should look barely human; automata should feel like walking war machines from a darker age of technology.
Transport and support vehicles: Don't overlook armoured transports and artillery — they complete the battlefield feel of a true Mechanicum cohort.

The Mechanicum range is primarily served by Forge World's resin kits, and Wayland Games stocks an excellent selection with affiliate links to help support the FindMyMinis community.

Wayland Games — Mechanicum: Thallax Cohort

The Thallax are the backbone of many Mechanicum lists — cyborg shock troops encased in powered armour. Community members note these match seamlessly with the rest of a Heresy army, making them an excellent starting point for a new collection.

Wayland Games — Mechanicum: Tech-thralls Covenant

The Tech-thralls bring a completely different feel to the faction — ragged, half-converted human workers pressed into war service. They're an ideal way to add visual variety and a sense of scale to your cohort.

Wayland Games — Mechanicum: Thanatar Cavas Siege-automata

If you want a centrepiece model, look no further. The Thanatar Cavas is a hulking siege-automata packed with detail, and community members highlight the exceptional resin quality as worth every penny over standard plastic kits.

Wayland Games — Mechanicum: Triaros Armoured Conveyor

The Triaros is the Mechanicum's iconic tracked transport, and collectors praise its characterful sculpting as perfectly capturing the Heresy era aesthetic. It's a practical and narrative choice in one model.

Wayland Games — Legions Imperialis: Mechanicum Triaros Squadron & Cerastus Knights Atrapos

For players also running Legions Imperialis, Wayland carries the Mechanicum Triaros Squadron and the stunning Cerastus Knights Atrapos in 8mm scale — perfect for expanding your Mechanicum presence across game systems.

The Mechanicum reward collectors who lean into their strange, ancient character — so take your time, build your cohort piece by piece, and enjoy one of 30K's most unique forces. Found a great miniature source we haven't listed? Head over to FindMyMinis and submit it to help fellow collectors build their perfect war cohort.