It seems Microsoft listened to our suggestion to add something big to Game Pass for the holidays, except it may have done it a tiny bit early. Xbox Game Pass was just updated with two surprise additions, available right now for all members.
Those being this year's excellent Remnant 2, as well as its predecessor Remnant: From the Ashes.
From the Ashes has been on Game Pass before, of course, but this is Remnant 2's first go on the subscription service. Weirdly, the two games joined with no proper announcement, and they certainly weren't expected to be among the next batch of November games to join Game Pass.