好像只有 C&C 在減價中...

Command & Conquer: Red Alert 3 $4.99
http://store.steampowered.com/app/17480/

Command & Conquer: Red Alert 3 - Uprising $4.99
http://store.steampowered.com/app/24800/

Command & Conquer 3: Kane's Wrath $4.99
http://store.steampowered.com/app/24810/

Command & Conquer 3: Tiberium Wars $7.49
http://store.steampowered.com/app/24790/

Command & Conquer 4: Tiberian Twilight $4.99
http://store.steampowered.com/app/47700/

倒是 amazon digital download 有不少重量級的減價...請參照電玩遊戲版