Hi there and thanks for the response. Could I technically release the game, have them download it, then un-release it? I am wondering if that would get round the problem?
Sharing a link to an unlisted game will let people download the game. It will not let them “own” the game though, so un-publishing the game may create issues with them viewing the page, but they should still be able to run the executable they downloaded when it was available.
Another approach is to create a download key group for the restricted page and then had out those keys.