Game Rules

The duel

• A king creates a duel by choosing a total pot (5 to 10,000, in steps of 5) and a side: Heads or Tails.
• Each king puts in exactly half the pot. A 100 pot means you put in 50 and your rival puts in 50.
• A challenger joins, takes the other side and puts in the same amount. From that moment nothing can change.
• The coin is flipped with public randomness that did not exist when the duel locked.

Fees and payout

• 2% of the pot is taken in fees: 1% to Kings Duel and 1% to rewards. Half of each referred player's rewards-fee contribution pays their referrer; the rest funds the Daily Treasury Draw. Unreferred contributions go fully to the draw.
• The winner receives the rest. For a 100 pot the winner receives 98. The loser loses their 50.

Unmatched and stuck duels

• You can cancel your duel any time before a challenger joins; your contribution returns in full.
• Duels nobody joins expire after 24 hours by default and are refunded in full, with no duel fee. The duel page shows its exact expiry time.
• If randomness ever fails to arrive in time, both kings are refunded in full. A result is never re-rolled.

Play money

The public version uses play money (pUSDC). It has no cash value and cannot be withdrawn.

See also Fairness and Responsible Play.