Oh! I was confused about the pack because the games were different than the ones I bought, but it turns out, I was looking at the wrong email. I apparently got a bonus pack of 4 extra games that a few users who buy the bundle get, so I got Civ 5 AND Civ 4, and Bioshock Infinite AND Bioshock, and Borderlands, and Borderlands 2, XCOM, and XCOM Complete.
Wow.