Key Features:

• Construction! - You choose how your Firebase should look and function.
  
• Different units with very different play styles - Using the right combination of your units is the key to a successful defence.
  
• Manage ammunition - Different units uses different ammunition, you need to make sure they never run out.
  
• A wide variety of different enemies - From small and almost harmless, to huge and dangerous that will level your Firebase to the ground if not dealt with.
  
• Mission variety - Different missions require different strategies.
  
• Survival mode - Unlockable extra mode that gets progressively more difficult.

Bonus Feature:

• Blow up sheep! (not to be confused with inflatable sheep)