This is a crunchy mini-game (for up to 8 players) where PCs take turns drinking enchanted shots, and breathing to damage the other contestants' boats.

The DM can set the entry fee and cost per shot fee. Fees are automatically deducted, but if a contestant doesn't have the coins they can still play (a message showing what they owe is displayed).

The players take turns buying a random shot, and then applying its effects to a selected target.  Most shots require a save (CON DC 10) to avoid minor side effects.