Sometimes, due to the lengthy App Store review process, the latest Mac & PC versions of the games can be newer than the current Mac App Store, iPad or iPhone version of the games.
This can cause problems trying to setup for example a local network game or connecting to a friend, using iPhones and/or iPads to connect to Macs and/or PCs.
You can check what version of a game you have by clicking the About button from the main menu of the game.
Below are links to any older versions of games for Macs & PCs that you may wish to download:
GrassGames' Cribbage: Not needed - all versions up to date.
GrassGames' Hearts: Not needed - all versions up to date.