Games Workshop has finally given Age of Sigmar its walking castle. Cogforts, the enormous gun-bristling fortresses of the Ironweld Arsenal, were the headline reveal at AdeptiCon 2026 and they're heading to pre-order soon as part of the new Battletome: Cities of Sigmar. The kit builds either a Cannonade or a Conqueror variant, and the rules let any army in the game field one as an outlaw mercenary.
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Set up your group for freeThe Cannonade Cogfort is the gun line in physical form. It mounts a Godbreaker cannon on top, a belly gun underneath and a battery of pintle-mounted weapons that Wargamer fittingly compared to garlic crushers. The Conqueror Cogfort goes the other way, swapping the long-range artillery for a Realmscorcher flame cannon and a drawbridge in its belly that can disgorge an entire infantry unit straight into combat. Both variants build from the same kit, with an expected price tag in Imperial Knight territory (Wargamer reckons around $180-200 USD, putting it well north of £140).
The clever bit is the rules. Cogforts are available as Regiments of Renown, meaning any Grand Alliance can take one as a mercenary unit, while Cities of Sigmar players get the dedicated Iron March Army of Renown that lets them field a whole squadron. The Cogforts arrive alongside a fresh wave of Cities of Sigmar units including new characters, elite Freeguild infantry and Gate Gargants, all coming in the Battletome.
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Start organising for freeFor long-suffering Cities of Sigmar players, this is the biggest visual identity shift the faction has had in years. The Ironweld has been talked about in lore forever, and getting a properly daft, properly enormous walking castle in plastic is the kind of model that sells armies on its own. Expect Cogforts to be the centrepiece of more than a few display cases by the end of the year.
Sources: Warhammer Community | Wargamer | Bell of Lost Souls | Gaming Trend
