A complete list of games appearing in Command & Conquer Saga is as follows:

Command & Conquer (1995)
Command & Conquer The Covert Operations (1996)
Command & Conquer Red Alert (1996)
Command & Conquer Red Alert Counterstrike (1997)
Command & Conquer Red Alert The Aftermath (1997)
Command & Conquer Tiberian Sun (1999)
Command & Conquer Tiberian Sun Firestorm (2000)
Command & Conquer Red Alert 2 (2000)
Command & Conquer Red Alert Yuri's Revenge (2001)
Command & Conquer Renegade (2002)
Command & Conquer Generals (2003)
Command & Conquer Generals Zero Hour (2003)
Command & Conquer 3 Tiberium Wars (2007)