This isn't really a game, but it should be used to categorize miscellaneous game related items such as dice, dice towers, dice trays, timers, tokens, pawns and movers, etc., even computer/phone apps. Items in the BoardGameGeek Marketplace may refer to items listed here.
If there is a more specific designation for your item, use it instead. For example, there's an entry for card game accessories, another for miniatures accessories, and others.
