It looks like a lot of kids ended up in the wrong forum. This is a Q&A site for the developer community on the apple platform, not for user feedback of third-party app developers. These complaints will not get you anywhere. You have to contact the publisher of the game.
P13N
Users receive reputation points by contributing quality content to the forums.
Posts include post and replies published on the forums.
Post authors can mark replies as Accepted to indicate successful solutions.
Apple Developer Forums admins can mark replies as Apple Recommended to indicate an approved solution
Post
Replies
Boosts
Views
Activity
I would like to point out that Xcode 11.5 beta 3 ships with a template for file provider extensions on macOS. As described in my own question, - https://developer.apple.com/forums/thread/675686 I did not succeed yet in getting it running, though.
Quoting a bit from man pluginkit:
+ indicates that the user has elected to use the plug-in
- indicates that the user has elected to ignore the plug-in
! indicates that the user has elected to use the plug-in for debugger use
= indicates that the plug-in is superseded by another plug-in
? unknown user election state