Liar's Dice Rules

Liar's Dice hides almost everything: every player rolls their own dice under their own cup, and the entire game is built on bidding about a combined total nobody can actually see in full — only the bidder's own small slice of it.

The setup

Each player starts with the same number of dice, commonly five, and a cup to shake and roll them under, keeping the result hidden from everyone else at the table. Every player rolls simultaneously at the start of a round and looks only at their own dice, never anyone else's.

Bidding

Starting with an agreed first player, players take turns making a "bid" — a claim about how many dice of a specific face value exist across every player's hidden dice combined, not just their own. For example, a bid of "five 4s" claims that at least five dice showing a 4 exist total, across the whole table. Each subsequent bid must raise the previous one, either in quantity (bidding six of some value instead of five) or, at an equal quantity, in face value (bidding five 5s instead of five 4s).

Ones are usually wild

In the most common ruleset, rolled 1s count as wild — they count toward the total for any face value being bid on, which sharply raises the odds that a given bid is true and is why bids on 1s themselves are often treated specially (some tables require a bid switching to or from 1s to follow a separate quantity rule, since a 1 effectively counts double toward most bids). Some tables play without wild 1s at all; agreeing on this before the first round matters more here than in almost any other rule in the game, since it directly changes the math behind every bid.

Challenging instead of raising

Instead of raising, a player may challenge the previous bid, calling it false. All dice are then revealed. If the actual count of that face value (including wild 1s, if in play) across the whole table meets or exceeds the bid, the challenger loses and must remove one of their own dice from play; if the bid was too high, the bidder loses a die instead.

Losing dice, and winning

A player who loses all their dice is eliminated from the round-to-round game entirely. Play continues, round after round with fresh rolls and a shrinking overall dice pool, until only one player still has any dice left — that player wins.

Strategy: reading the table's dice count, not just your own

Because the total pool of dice shrinks as players are eliminated, an experienced player tracks not just their own hidden roll but the overall probability of any given bid given how many total dice remain across everyone still in the game — a bid that was reasonable with thirty dice on the table becomes a much bigger claim once only ten remain. Bluffing (bidding a total you know is unlikely, banking on other players not challenging) becomes progressively riskier as the total dice pool shrinks and the field of possible outcomes narrows.

Origins: a Latin American folk dice game known internationally as Dudo

Liar's Dice has deep roots in Latin American dice-gambling traditions, most directly recognized under the name Dudo (Spanish for "I doubt"), commonly played across Peru and other South American countries, with related versions and names spreading elsewhere without one single, precisely documented point of invention. A well-known trademarked commercial edition, Perudo, packages the same core Dudo ruleset with its own branded components and rule tweaks, but the underlying bidding mechanic long predates that specific commercial product and remains freely playable with nothing but ordinary dice and cups.

The arguments this game actually produces

Some tables recognize a "spot on" or exact challenge — claiming the current bid's quantity is exactly correct, neither too high nor too low — and reward it by making everyone else at the table lose a die instead of just the bidder or challenger. This "exact call" option isn't part of every ruleset, so it's worth naming explicitly before play starts if a table wants to include it.

Questions that come up mid-round

Does a new round start with every remaining player rolling the same number of dice they finished the last round with? Yes — dice lost in earlier rounds stay lost for the rest of the game; each new round simply re-rolls whatever dice each surviving player currently has.

Can a bid ever be lowered instead of raised? No — every bid in the sequence must strictly raise the previous one in quantity or face value; there's no mechanic for bidding lower than what's already on the table.

Do all players reveal their dice on every challenge, or only the bidder? Every player's dice are revealed the instant a challenge is made — the whole point of a challenge is settling the true total across the entire table, which is impossible to verify from just one player's hidden cup.