Game difficulty, badges, many bugfixes and more out now! The entire changelog:

Changelog

• Backwards compatibility for account system
  
• Total matches only changes if the player has passes at least 1 wave
  
• Badges added, beta badge given for players who played the game during the beta phase (now!)
  
• Game difficulties (easy, medium, hard)
  
• Added the option to close screen shake
  
• Glock 17 screen shake added
  
• “waves survived” text in game over menu

Bugfixes:

• Fixed map object placing issues
  
• Made unlocked weapons drop to ground if all slots are already taken
  
• Fixed intro skip code
  
• Fixed zombies remaining value getting stuck
  
• Fixed glitchy tiles