There's no release date yet for the PC version of Rise of the Tomb Raider, but gamers can get a sneak preview of what to expect from the Xbox version, which will include "Expedition Cards".
These will be Cards that can be purchased with credits earned in-game or with real-life money that will give bonuses to the single player campaign. According to creative director Noah Hughes, "Expedition Cards offer hundreds of ways to customize your Rise of the Tomb Raider experience. You can also set up challenges for your friends to see if they can beat your scores with the same card setup. We’ll have about 300 cards available at launch, and more will be added in the weeks that follow."
Also revealed were what will be included in the $30 Season Pass: an Endurance Mode, Baba Yaga: The Temple of the Witch single player expansion, a Horde mode called Cold Darkness Awakened, and "a steady stream of outfits, weapons, and Expedition Cards." The Season Pass will cover four months post-release.