Game object as parent to matches of all users

[NikoFoX]

Problem:
Actual concept is that every user has it's own non-unique games, e.g. there are 2 games of the same title, but each for different user.
Adding new game to the user always searches for game in bgg and creates duplicated object in db.

Idea:
New concept would be that every user has own Game, which is a child of ParentGame.
When user adds game, it will search for game of same name or bgg_id in db and use it for user's Game parent.
If game won't be find in db, then send request to bgg for game.