This book gives your Traitor battlegroup everything they need to march in your games of 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 notorious Titan Legions and Knight Households. If you want to march your twisted god-machines to the very gates of Terra and tear them down, this book is your essential reference.
This 176-page hardback book contains:

Background for Traitor Titan Legions and Knight Houses
Revised rules for assembling your battlegroups
Rules for 16 Traitor Titan Legions, including Legio traits, Stratagems, and wargear
Rules for 12 Traitor Knight houses
19 different maniples to use with your Titans
Allegiance rules for Traitor Titan Legion Battlegroups, Questor Traitoris, and Questor Mechanicus
Background and rules for fielding Corrupted Titans, mutated god-engines fielded in the latter days of the Horus Heresy
51 Stratagems for use by Traitor battlegroups
11 Titan upgrades
A comprehensive list of weapons available to each Titan, including weapon traits not featured in the core rulebook