Nvidia announced a new policy for its GeForce now cloud gaming service on Wednesday. Publishers and developers will have to opt into the platform to have titles remotely available via NVIDIA servers.

Only the games that are opted in will be available on the service.’yet some publishers are still figuring out their cloud strategies,’ says Nvidia vice president Phil Eisler.

The shift is meant to address disputes over licensing. Nvidia included games on the platform without the permission of some game developers and publishers and then removing the software later.

Nvidia’s GeForce now allows subscribers to access their existing library of games bought from storefronts like epic and steam. That approach has proved controversial because it raises important, largely unanswered questions about digital ownership and the underlying business models of cloud gaming.

As of today, publishers who do not opt in GeForce now by May 31 will have their games removed. Nvidia also shared a list of currently gamer titles that will no longer be accessible later this week.