Command and Conquer The Ultimate Collection - $17

Amazon as C&C: The Ultimate Edition available for $16.99 as their deal of the week. PC Digital Download.

Includes:

• Command & Conquer
  
• Command & Conquer The Covert Operations
  
• Command & Conquer Red Alert
  
• Command & Conquer Red Alert Counterstrike
  
• Command & Conquer Red Alert The Aftermath
  
• Command & Conquer Tiberian Sun
  
• Command & Conquer Tiberian Sun Firestorm
  
• Command & Conquer Red Alert 2
  
• Command & Conquer Red Alert Yuri's Revenge
  
• Command & Conquer Renegade
  
• Command & Conquer Generals
  
• Command & Conquer Generals Zero Hour
  
• Command & Conquer 3 Tiberium Wars
  
• Command & Conquer 3 Kane's Wrath
  
• Command & Conquer Red Alert 3
  
• Command & Conquer Red Alert 3 Uprising
  
• Command & Conquer 4 Tiberian Twilight
  

Usually goes for $30 or so. Not a bad deal at all if you're into C&C games; that's quite the comprehensive list.