When you add a game to your gaming group must be a "base" game (example: Sid Meier's Civilization: The Board Game).
Then, if there are any expansion for this game, the web must ask for possible expansions that you have (example: "Fame and Fortune" or "Wisdom and Warfare") to choose any of them.
When you add a play with a game with expansions, you can add any expansion for that particular played game and register as a data to make better stats.
Have a button / drop-menu to add expansions to a base-game entry.
You need to consider how this will effect game multipliers for nemepoints.
Expansions can make games harder and / or longer, and this needs to be reflected when one OR MORE expansions are included.
Exactly how to incorporate this "expansion effect" on nemepoints is above my head, so I leave it in your capable hands. Reply