Board Thread:Suggestions forum/@comment-26456694-20170213130500/@comment-28440866-20170213140307

I like the idea, but I don't think that the player has to pay a fee. NPCs are supposed to be living people in the world, and I think that they should automatically upgrade after getting an X amount of kills. Of course, a message would be displayed in chat and in the GUI.

Additional idea: in between the weapon and the health bar above the unit's head, have 1/2/3 golden stars respectively of their level.