Seems to be like the Ubisoft demos, full game and you can try for 60 mins,
Play for Free with Limited Timed Trial
For those that have yet to face the horde in Dead Rising 4, we’re excited to announce the availability of a 60-minute timed trial experience for Xbox One. The trial will allow new players to earn achievements and carry saved game progress into the full game should they decide to purchase at the end of the trial period. Players can experience both single player Story Mode as well as Multiplayer during the trial period.
The timed trial experience will be available beginning Jan 31.