According to the Darkest Dungeon Twitter account, it looks like Xbox One owners can experience the challenging, gothic rogue-like turn-based RPG at the end of February.
The highly rated RPG from Indie developer Red Hook Studios is already available on PC, PS4, and more recently Nintento Switch. We reviewed it on PC back in 2016 and scored it very highly.
Darkest Dungeon for Xbox One is scheduled for a 28 February release.