From Xbox Wire: “The team here at Xbox game pass is proud to present video games! Weve got new Perks, more games, and even more games you can touch. Coming soon to a download or streaming queue near you! So pick your quests, (turn in the ones youve already done), and lets get to the games.”
Source: N4G PC Coming Soon to Xbox Game Pass: Dirt 5, Killer Queen Black, Wreckfest, and More