La faq officiel poster sur steam prècise que pour xbox le jeu arriverais millieu 2018
https://steamcommunity.com/app/473690/discussions/0/2579854400733819593/
What other platforms will Absolver come to after PC and PS4?
The team at Sloclap is relatively small so we started with PC and PS4 but hope that with success we can bring the game to more platforms like Xbox 1, Nintendo Switch, etc. There is no timetable on those ports at the moment but would love to have at least one additional platform by early to mid 2018.