Halo: The Master Chief Collection (PC Digital Download) $10

Steam has Halo: The Master Chief Collection (PC Digital Download) on sale for $9.99.
Halo: The Master Chief Collection Includes:

• Halo: Combat Evolved Anniversary
• Halo 2: Anniversary
• Halo 3
• Halo 4
• Halo: Reach
• Halo 3: ODST