Warhammer Horus Heresy Super-Heavy Tanks Share a Plastic Chassis

Games Workshop opened pre-orders on Saturday, May 23, 2026, for two new Horus Heresy super-heavy tanks: the Falchion Super-Heavy Tank Destroyer and the Spartan Prometheus Assault Tank. Both kits arrive on shelves Saturday, June 6, 2026, and both are aimed at Legiones Astartes players building out the heaviest end of the Age of Darkness range. The kits land with a wrinkle collectors have been flagging for months: the same Baneblade plastic that built the Fellblade variants is doing the work underneath at least one of them.

What Goes to Pre-Order This Weekend

The two kits pre-order at the same time but live at different price points. The Falchion Super-Heavy Tank Destroyer leads the wave as the centerpiece piece, a dedicated tank-hunter built around a neutron-wave cannon and a swappable sponson loadout. The Spartan Prometheus Assault Tank is a different beast: an armored transport variant of the Spartan chassis, designed to deliver elite infantry into the thick of the fight while bringing serious fire support on the way in.

Pricing sits in the upper-middle band of Games Workshop’s Horus Heresy plastic range. The retailer Spikey Bits published regional price points for both kits on its updated release page, and the gap between them is wider than the size difference between the two models suggests. The Falchion opens at $210 in the United States, while the Spartan Prometheus lands at a lower $122 sticker that puts it closer to a heavy assault transport than a centerpiece war machine. The Saturday pre-orders post for both tanks confirms the dual release window. Saga Concepts’ June release schedule for both kits cross-checks the June 6, 2026 shelf date.

Players weighing which kit to put on pre-order have a short window to plan. The Saturday May 23 pre-order opens at around 1 p.m. Eastern time in the United States, with the shelves opening on Saturday June 6, 2026. The same dual-release window applies in the UK, EU, Canada, and Australia, with regional price conversions set by each local distributor. Independent retailers handle their own allocation cycles, and sell-outs on the Saturday window have been common on past Horus Heresy pre-orders.

• Pre-order opens: Saturday, May 23, 2026 (around 1 p.m. EST in the United States)
• On shelves: Saturday, June 6, 2026
• Falchion main weapon: neutron-wave cannon
• Falchion US price: $210
• Spartan Prometheus US price: $122

What the Falchion Brings to the Table

The Falchion’s main gun is a neutron-wave cannon, a weapon the retailer Spikey Bits describes as built to threaten enemy tanks, Knights, and other hard targets that usually laugh off lighter attempts to disable them. The cannon is the centerpiece; the sponson hard points around the hull let players tune the rest of the kit’s role to taste. Players can pick from three sponson weapon options to round out the rest of the kit’s role. Available sponson weapon options include:

• Laser destroyers
• Gravis heavy bolter batteries
• Lascannon arrays

That sponson spread is what makes the Falchion flexible inside a Legion list. Players leaning further into anti-armor work can swap in lascannon arrays to chain more high-strength shots into the heaviest targets on the table. Players who want the tank to double as an infantry-clearer can mount gravis heavy bolter batteries and trade raw penetration for raw volume of fire.

The Falchion’s lore predates the Horus Heresy itself, with one retailer description noting the design was developed long before the outbreak of the war. That backstory is part of why it reads as a centerpiece model rather than a support vehicle; the whole design language leans into the idea of a relic weapon that was good enough to keep on the line when civil war broke out. For Loyalist and Traitor Legions alike, it slots into the current army books as a super-heavy option, with rules drawn from the same Liber Astartes and Liber Hereticus volumes that govern other super-heavies in the range. Loyalist armies anchor it in firing lanes or pair it with infantry blocks, while Traitor lists lean on it as a centerpiece for aggressive armored spearheads.

The same chassis underlies multiple super-heavy variants Games Workshop has released over the past year, and that chassis history is part of what makes the Falchion a notable release. Loyalist and Traitor players who already own an earlier variant of the platform are paying for a new turret and weapon sprue on top of a familiar hull.

The Spartan Prometheus as an Armored Ride

The Spartan Prometheus is built around a different problem than the Falchion. Where the Falchion is a hunter-killer, the Prometheus is a delivery system wrapped in enough armor to survive the trip. The Prometheus trades the Falchion’s long-range firepower for a more flexible sponson loadout that pairs with its transport role.

Its weapon options cover two paths in the sponson mounts. Both choices fit the kit’s transport role while changing the kind of fire support the tank brings to a midfield push.

• Sponson-mounted laser destroyers
• Gravis heavy bolter batteries

Sponson-mounted laser destroyers push the Spartan Prometheus toward a heavier target-removal role, the kind of vehicle a Legion might use to soften a midfield objective before the infantry it carries hits the dirt. Gravis heavy bolter batteries lean into volume of fire, useful for clearing chaff and dug-in light infantry around the drop zone. The loadout choice changes what kind of transport the tank actually is, and either weapon set pairs cleanly with the kit’s role as a heavy transport for elite infantry.

The Chassis Hiding Underneath Both Kits

The pricing conversation around this release is harder to escape than the marketing suggests. Spikey Bits’ write-up of the Falchion makes the critique explicit: all three Fellblade variants have now been released in plastic, and each runs about $200, on top of a base Baneblade kit priced at $197 that can be assembled into eight different configurations. The Falchion alone is priced at $210 in the United States, higher than the base Baneblade it shares much of its chassis with. That math is the part collectors are weighing.

The Baneblade chassis has been a productive piece of plastic for Games Workshop, a single sprue that can be built into multiple super-heavy tanks with different turret and weapon configurations. Each time the company releases one of those variants as a standalone kit, players who already own an earlier chassis are paying for the new turret, the new weapon sprue, and the assembly instructions, rather than a wholly new vehicle.

Spikey Bits calls plastic “a production equalizer” in its write-up, arguing the chassis should not be used to justify separate kits at $200-plus prices over multiple release cycles. Games Workshop has not commented publicly on the pricing structure, and the Spartan Prometheus at $122 in the United States reads as a softer sell by comparison, since the Spartan chassis has fewer recent variant releases and the transport role justifies the new kit more cleanly than another Baneblade variant does. The retailer notes that all three Fellblade variants sit at $200 each for what is essentially a Baneblade kit with three main weapon swaps.

The Spartan Prometheus lands as the only brand-new chassis in the wave, with no prior plastic variant to share parts with. That gives the transport release a cleaner case for its $122 US sticker than the Falchion has for its $210. Independent buyers weighing the two kits have one chassis that’s been recycled across three super-heavy variants and one that’s standing on its own.

How Both Tanks Fit a Horus Heresy List

The Falchion and Spartan Prometheus enter the range at different points on the army-building spectrum. The Falchion is a super-heavy choice that anchors a list around a single centerpiece, while the Spartan Prometheus is a heavy transport that protects elite infantry and hard-hitting assault units while delivering them across the board.

Loyalist armies use the Falchion to anchor a firing lane or to support a hard push up the table, while Traitor Legions get the same brutal options, and Spikey Bits frames both kits as strong centerpieces for lists that want to pressure enemy super-heavies and Knights. The sponson options are what make each tank tunable inside a given Legion. Lascannon arrays on the Falchion push the model harder into anti-armor work, and gravis heavy bolter batteries add volume against infantry and lighter threats. The Spartan Prometheus swaps between the same sponson logic for different transport profiles.

The kits also give hobbyists a lot of visual real estate to work with, and the Falchion’s neutron-wave cannon is a natural focal point for glow effects and muzzle discoloration. The Spartan Prometheus draws the eye to its front armor and sponsons first when the tank is rumbling toward the middle of the board. Weathering powder, hazard stripes, and Legion iconography all sit naturally on the slab armor panels of both kits. The rear ramp and access hatches on the Spartan Prometheus give painters a chance to dress the model with the same grimy detail that ties a Horus Heresy collection together. The Falchion’s larger surface area gives more room for weathering and edge highlights, while the Spartan Prometheus reads as a natural centerpiece for a transport-heavy Legion list.

Where This Wave Sits in the Games Workshop Calendar

The timing of the release matters as much as the kits themselves. The Horus Heresy heavy armor preview on Wargame Portal notes that the road to the 11th Edition of Warhammer 40,000 is almost here, with the 11th Edition launch box now standing as the main event. The Horus Heresy tanks are framed as the last major piece of the puzzle before things really start moving.

The full price breakdown across US, UK, EU, Canada, and Australia on Spikey Bits carries a forward-looking guess at the next pre-order waves: Red Terror, Cadian Recon Squad, two new Guard tanks, and then 11th Edition launch products the following week. That schedule puts the Falchion and Spartan Prometheus as the last two super-heavy kits in the Horus Heresy pipeline before 11th Edition launch products arrive.

Frequently Asked Questions

When do the Falchion and Spartan Prometheus go on pre-order?

Pre-orders opened Saturday, May 23, 2026, around 1 p.m. EST, with a shelf release of Saturday, June 6, 2026.

How much do the new Horus Heresy tanks cost in the US and UK?

The Falchion lists at $210 in the US and £125 in the UK. The Spartan Prometheus lists at $122 in the US and £74 in the UK.

What rules books cover the new Falchion and Spartan Prometheus?

Both tanks have rules in the Liber Astartes: Loyalist Legiones Astartes Army Book and the Liber Hereticus: Traitor Legiones Astartes Army Book. Those are the current Legion army books for Horus Heresy, and they cover Loyalist and Traitor variants side by side for every super-heavy in the range.

What’s the difference between the Spartan Prometheus and the standard Spartan Assault Tank?

The Spartan Prometheus variant adds sponson-mounted laser destroyers or gravis heavy bolter batteries to the Spartan chassis, the specific weapon options Spikey Bits flagged as different from the standard Spartan Assault Tank.

What comes in the next Warhammer pre-order wave?

Spikey Bits projects Red Terror, Cadian Recon Squad, two new Guard tanks, and then 11th Edition Warhammer 40,000 launch products the week after.