This is not actually a RPG in the sense of evolving, but your sword DOES evolve. Here is you:
Sword name: Could be everything, just be original Sword type: Choose between wood sword, rusty sword or long knive. Very important: excepting these three, every sword is UNIQUE, you cannot have the same thing another does. Class: Weaponmaster, Duelmaster and Crusher. You will never change your class so choose carefully.