Secrets of the unknown is a game created to play OSR adventures with a Forged in the Dark system.
Here I've put together my preferences, after years of running and playing games, to create a game that facilitates my efforts to enjoy the amazing OSR adventures in the way I most like to play.
This 48-page book is illustrated and laid out in a way that makes it easy to use while playing. As well as the rules, you'll find lots of tips on how to apply them at your table. In addition to the book, you can also download sheets in .doc and .ppt (to share on Drive), making it easier to play online.