Changelog:

New Things:

• Hovering the mouse over an item shows its price range
  
• Quick sell option (CTRL + LMB)
  
• Unlocking items in the store, such as animals or coal, is no longer possible with upgrades. Now you can do it for $ in the store
  

Tools:

• Energy costs changed
  
• Crafting costs changed
  
• Bonuses for iron and gold tools have been added
  

Other:

• Fixed bug in the store that allows you to buy even if you don't have enough money
  
• Destroying a building returns all materials used to build it