From the back of the book:
Tell Stories You Have Never Heard Before
Humanity has reached the stars
An alien plague without a cure threatens civilisation
Only a few tragic heroes can save mankind
Odd Soot is a roleplaying game of mystery and investigation set on an alternate Earth in the 1920s. Mankind has travelled into space and found alien civilisations. But a disease called The Soot spreads, driving those infected into madness. And they follow a twisted logic, wreaking havoc around them.
With Odd Soot you can tell stories you’ve never heard before.
You play deep, personal characters with impressive talents and tragic backgrounds. The setting is strangely familiar – combining alien worlds with 1920s tropes – full of mysteries and unsolved enigmas.
Odd Soot is a complete roleplaying game based on Mythras. No other books are needed to play.