OriginalsOdds is an independent educational project. Our mission is simple: show the real odds behind provably-fair casino games so people can understand exactly what they're playing before they play.
We build free, no-signup calculators for the "originals" you'll find on modern crypto casinos — Mines, Dice, Plinko, Limbo, Crash-style games, Wheel, Roulette, Baccarat and more. Each tool shows win probability, the fair multiplier, the house edge and your expected loss, plus a plain-English explanation and, where relevant, a provably-fair verifier.
Every calculator is built from standard probability and combinatorics, and validated independently — cross-checked with Monte-Carlo simulations and reference math before it goes live. We publish theoretical, long-run figures and we're upfront about their limits: real operators may use different parameters, and short-term results are always random.
We are not a casino and we don't offer real-money gambling, accounts or deposits. We are not affiliated with any operator — we don't take a cut of anyone's play. Game and brand names are used descriptively to explain their mathematics. Our only goal is transparency.
OriginalsOdds is currently run as an independent educational project. A dedicated developer company will be established and formally attached to the project in the future; this page will be updated when it is.
Understanding house edge is itself a responsible-gambling tool — it shows why, over time, the house wins. We're 18+ only and we point anyone who needs help to free, confidential support. See Responsible Gaming. Questions or corrections? Get in touch.