Where can I find the official rules for the game zzzzz?
You probably can’t. The vast majority of games do not have official rules, in the sense that some body has laid down authoritative rules accepted by all players. Most games are governed by house rules which are agreed by the group of players taking part in the game. These often vary from group to group, so anyone joining an unfamiliar group of players would be wise to check on the rules in play, especially if the stakes are significant, to avoid unpleasant surprises later. Official rules work well, and indeed are fairly necessary, for games that are extensively played in clubs and tournaments over a wide area. Examples of such games are Contract Bridge, Skat and French Tarot.
