After setup process the game will be available to launch on your own account, just as any other game or app you purchased directly in Xbox Store.
As a man or woman stranded naked, freezing and starving on the shores of a mysterious island called ARK, you must hunt, harvest resources, craft items, grow crops, research technologies, and build shelters to withstand the elements. Use your cunning and resources to kill or tame & breed the leviathan dinosaurs and other primeval creatures roaming the land, and team up with or prey on hundreds of other players to survive, dominate... and escape!
This is an Xbox Play Anywhere title, you will be able to play it on both Xbox One and Windows 10 PC at no additional cost.