Stick Club

Stick Club is likely the first weapon a new player will wield. It can be crafted from common resources and can be reasonably effective at fighting animals. However, if fighting an opponent without a primitive weapon, it may be best to retreat to town guards to fight another day.

Source
The Stick Club can be crafted by default by all classes.

Trivia

 * Stick Club used to be called "Stick Weapon" until the name was changed in Patch V0.07.