Book of Vile Vices (2019)

Publisher's blurb:

Every big city worthy of its name has a dark underbelly. A parallel society, where the rules are different, the morals are muddled, the laughter is louder and the desperation is deeper. Where one can indulge in the sort of things, the other society likes to pretend doesn't exist. Where those who are ready to put everything on the line can find pleasure, wealth and power – if they don't lose themselves in the pursuit

This document contains:

• 7 Illegal Substances – Complete rules and descriptions for Dawnflower, Faerzress Fungi, Illithid's Kiss, Mistleaf, Rot, Sight and Spelldust – unique illegal substances, that'll entice – but also challenge – your player characters*.
• 5 Betting Games – Detailed rules for Dragonchess, Loremaster, Kobold's Knuckles, Sava and Three-Dragon Ante – exciting betting games that'll ensure a fun evening for risk-willing characters!