Exactly how does this work? There is no info in the app itself and only a few lines mentioning the new feature on the App Store with zero specifics...
System specs:
1. iPad mini 2, iOS 8.4
2. iPad Air 2, iOS 8.4
3. iPhone 5s, iOS 8.4
Here's what I've tried:
1. Updated existing Grimrock (4 different save games were on the device) to v1.1.1 on iPad mini 2 (iCloud Drive & storing documents & data in iCloud for Grimrock was also already enabled)
2. On the iPad Air 2, signed in to the same Apple ID/iCloud Drive used on the mini 2 above, enabled iCloud Drive along with storing documents & data in iCloud for Grimrock, installed Grimrock 1.1.1 (clean install, no previous data)
3. Ran Grimrock on iPad Air 2 however game data from iPad mini 2 was nowhere to be seen to load on the main menu. The game reacted like there were no save games on it and started a new game for me
How the heck does this work? Does the second device need to be an iPhone? I have not tried this since it seems any compatible iOS device should be able to pick up the save games if they are in iCloud Drive and you're signed into the same Apple ID/iCloud drive
Do you need to have Game Center enabled (I do not)
I even tried to access the game data using iTunes File Sharing but Grimrock is not enabled in that regard.
More info is needed here along with instructions how to get this feature working.