I found a bug from Teemu. You can play the game without entering a name, just press enter when name is asked. Funny thing is that it seems to work fine, it doesn't crash the game. I don't even know if it's a bug, but I'm fixing it in v1.1.
With limited inventory of Teemu I created a tool inventory with items you can only (u)se. This new invention will also prevent extra checks with tool items and makes more room in the inventory for new items.