Major changes:

• Added achievements (more achievements to come in the future!)
  
• Added meta progression: Completing achievements will unlock new towers, artifacts and, in the future, commanders
  
• Added a proper reward menu at the end of each wave
  
• Added GUI sounds to all GUI elements
  
• Added hotkey settings
  

Minor changes:

• Gold is now gained at the end of each wave instead of from killing invaders
  
• The building health bar was remade to be less visually intrusive
  
• Improved clarity when exploring the map
  
• Minibosses now spawn from the miniboss tile
  
• Added camera rotation
  
• Lots of small bug fixes and clarity improvements