Yoon-Suin is a campaign toolbox for fantasy games, giving you the equipment necessary to run a sandbox campaign in your own Yoon-Suin - a region of high adventure shrouded in ancient mysteries, opium smoke, great luxury and opulent cruelty.
What people have said about Yoon-Suin
"Yoon-Suin remains for me the original OSR setting and a huge inspiration." - Tom F
"One of the most original and fully-realized settings period in DIY D&D or otherwise." - Zak S
"This is probably one of the most impressive gaming supplements (let alone campaign settings) that I’ve ever come across...I can’t recommend this enough: this is a must-have for any DM or game designer. It is a fantastic work." - Necrozius