The Borderlands 2 skill tree builder has launched on the game's official website, giving fans the ability to plan out exactly how they want to play given character types.

You've got trees for commando Axton, gunzerker Salvador, assassin Zero, and siren Maya.

Increased functionality will be added in the coming week.

Borderlands 2 will be released September 21 on Xbox 360, PS3 and PC.