A Tutorial upload is the general name for a type of upload in Powder Game and Powder Game 2 that explains some form of feature on the game. These uploads are usually created after an update on the corresponding game, normally only for updates that add new elements. They generally contain basic info about the new element and/or other feature, and usually get a medium to large amount of votes.
Not all tutorial uploads are created to explain the effects of a recent update, however. Some tutorial uploads exist to educate the viewer about common Powder Game creations such as guns, pixel arts, and joints, although often with little to no success.