Board Thread:Suggestions forum/@comment-26410366-20160203205206/@comment-26041296-20160204034249

I think you mean this: You can combie (Like keys on a ring) golden with 2 other golden, or 7 silver, or 9 iron keys. Silver keys can be combined with 5 iron keys or 2 silver keys. Iron keys remain individual. Gold keys by themselves can unlock 3-4ish doors, silver keys 2, and Iron keys 1. The numbers will need to be adjusted to keep the balance, but that's the jist.