From publisher blurb:
OneDice Robin Hood is a quick, easy and flexible roleplaying game for playing Robin Hood style adventures.
You play as a group of outlaws. You can be rebels, hiding in Sherwood Forest - defying the Sheriff, Sir Guy and Prince John - and struggling for justice, the poor and the chance to clear your good names!
All the rules you need to play are in this book, along with a guide to Sherwood Forest, the Middle Ages and some alternate material and "skins" for setting your games in other times and places.