Blood & Treasure is an attempt to rewrite the v.3.5 System Reference Document (or "SRD", which is the essential part of Dungeons & Dragons Third Edition) into a reference for old school gaming (damage values tend to fall in line with those in Advanced Dungeons & Dragons).

The Treasure Keeper's Tome includes almost all the monsters and magic items from the SRD, as well as rules for strongholds, mass combat, naval combat, dungeon design, wilderness design, and settlement design.