The goal. Everyone starts with five dice. Lose them all and you are out; the last player still holding dice wins.
Roll. Each round, everyone shakes a cup of secret dice. You only ever see your own. 1s are wild: every 1 counts as whatever face the bid names.
Bid. A bid is a bet about ALL the dice on the table added up, yours and everyone’s hidden ones. "Five 4s" means: flip every cup and you’ll count at least five 4s. Each bid must top the last: more dice, or the same count of a higher number.
Call liar. Think the last bid is too big? Call it and all dice are shown. If the bid was good, the caller loses a die; if it was a lie, the bidder does.