The galaxy is at war. On a countless worlds, the Emperor's loyal armies fight to defend His realm from those who would tear it asunder. Among the greatest of the Imperium's defenders are the loyalist Titan Legions. Each god-machine is worth a thousand warriors, armed with destructive weaponry and able to devastate entire armies – and utterly devoted to defeating the traitors who seek to burn the Imperium to the ground. This book includes all the rules you need to forge a loyalist battlegroup for Adeptus Titanicus. It includes a wide array of maniples to use as the core of your force, alongside background and rules for many of the Imperium's most famed Titan Legions and Knight Households. If you want to defend Mankind from the darkness and devastate your foes with colossal war engines, this is the book for you. CONTENTS This 176-page hardback book contains: – Background for loyalist Titan Legions and Knight Houses – Revised rules for assembling your battlegroups – Rules for 16 Titan Legions loyal to the Emperor, including Legio traits, Stratagems and wargear – Rules for 12 Imperial Knight houses – 18 different maniples to use with your Titans – Allegiance rules for Loyalist Titan Legion Battlegroups, Questor Imperialis and Questor Mechanicus – Background and rules for Ordo Sinister Psi-Titans – 50 Stratagems for use by Loyalist battlegroups – 11 Loyalist upgrades – A comprehensive list of weapons available to each Titan, including weapon traits not featured in the core rulebook