I think the link you are looking for is here: https://test.myth-weavers.com/index.php?/followed/
Click on your username (top right) --> "Manage Followed Content"
But that isn't going to get you what you got on the old site, not yet anyway. Also, I don't think you can follow a "Game," only content within a game (Topics, Forums, Members, etc.).
[Edit] - When you follow the "Overview" page of a game, it does not appear that content aggregates anywhere (that I can find). I.e., there is no list of all the Overview pages you have "followed" like there is for Topics or Forums (using the link above).