Dice

About

Dice is the classic crypto-original: a transparent uniform-distribution game where the win chance maps directly to the multiplier. A thin house margin is baked into every payout calculation; nothing is adjusted per user, per session, or per stake.

How a round plays

• Pick a target between 0.01 and 99.99.
• Choose roll-over (win if roll > target) or roll-under (win if roll < target).
• Place your bet; the round derives a roll from HMAC-SHA256(server_seed, client_seed || nonce).
• If the roll satisfies your direction, you win stake x multiplier; otherwise the stake is lost.

Provably fair

• The roll is the first 4 bytes of HMAC-SHA256(server_seed, client_seed || nonce) mapped uniformly into [0, 100).
• Server seed is committed before the round, revealed after you rotate.
• Multiplier formula: (1 - house_edge) / win_chance. No hidden adjustments.

Every round is verifiable from a server seed (revealed after rotation), your client seed, and a per-round nonce. See how it works for the full construction.