I'm sure this was just a problem I had, but I couldn't find how to do most things, such as collect more resources, and forge anything. I wasn't able to tell the difference between what was and wasn't a button.
Thank you for playing! We will improve the accessibility after the jam.
Please take a look at the main page for the HOWTO.
To Stomp or Forge, you need to click the corresponding dragon button: 
Before forging, you need to drag the resources out of the left grid and drop them on the ground in the level:
