CDKeys offers Steam downloads of Rise of the Tomb Raider: 20 Year Celebration for Windows for $27.89. That's $32 under the lowest price we could find for the base game alone elsewhere. Beyond the base game, it includes the new "Blood Ties" DLC, all previous DLC, co-op mode, survivor mode difficulty, and in-game items and skins.

Note: New customers can provide an email address on the CDKeys Facebook page to get a unique coupon code that cuts an extra 5% off. Also, this item may be a preorder with an expected release date of October 11.

Update: The price has increased to $28.49.