by PzVIE
They look and feel great. And my players simply love them :meeple:Using them as a replacement for boardgame money has one disadvantage - Realm Coins come three denominations only - gold, silver and copper. But on the other hand, that should work with most games.
To answer your original question: Just count the number of "1"s in your favorite board games and order that many copper, silver and gold pieces. That should suffice, I think.
But let's think that through: In a six player game, if you use denominations of 1, 10 and 50 (e.g. for Power Grid), you'd need 9x6 copper pieces. If you use them as 1, 5 and 10, you'd need only 4x6 copper pieces for a 6 player game. And be sure to order a few reserves!