• New advances, equipment, fallout and specialised adversaries for every Spire class, including those released in the Strata and Sin sourcebooks
• Full rules for Safehouses, which provide a Ministry cell with a fully-furnished base of operations and cult headquarters
• Acquisitions, which make multiclassing and getting hold of equipment both easy to adjudicate and fun to do
• Liberty, a new shared resistance, which represents the efforts of the aelfir to oppress the drow all across the city
• Beats, an alternate method for advancement adapted from our ENnie-award-winning Heart which lets you focus on individual goals and scenes
• Tips and advice on running games of Spire

This is a sourcebook for the Spire: the City Must Fall roleplaying game. A copy of Spire is required to use this book.