War machines are mechanical constructions that hurl massive projectiles at the foe. Bolt throwers, cannon and stone throwers are all war machines, and there are many other bizarre contraptions to be found in the Warhammer world.

The following sections present the rules and weapon profiles for the most commonly seen types of war machine. Still more exotic types can be found in the various army lists, representing war machines unique to a certain race. For the most part, these exotic war machines will use the rules presented here with a few minor alterations or additional special rules, the better to reflect their unique nature.

For clarity, any war machine that uses one of the profiles presented here will have the name of the weapon and profile given as part of its 'equipment'.