We don't predict outcomes.
We describe them exactly.
Four ideas carry every tool on this site. Learn them once and you can read the math behind any provably-fair crypto casino game — including ones we haven't built a calculator for yet.
Two names, one number.
Return to player (RTP) is the long-run share of wagered value a game pays back — a property of the multiplier table, not a forecast. House edge is simply 100% − RTP: the cost of playing, stated up front rather than buried. Every tool on this site computes both as Σ P(outcome) × multiplier, printed next to the tool that produced it.
That −1.00% is the house edge, and it doesn't move regardless of which target you pick — the same proof structure repeats across Mines, Crash, Plinko and Dice, just with a different formula shape per game.
Verifiable after, unknowable before.
A hash, published first
A server seed is hashed and shown before the round — a fingerprint that locks in one exact value nobody can quietly change afterward.
Your input, combined in
Your client seed and a per-round nonce combine with the server seed through public hashing math to produce the round's result.
Reveal, then verify
Rotating your seed pair later reveals the original server seed. Re-running the same public calculation reproduces the exact result you saw.
This is exactly why the result can't be predicted in advance — by us, by a "predictor" tool, or by the platform itself. It's also why provably fair says nothing about a game's RTP — fairness and payout size are separate questions, covered separately here.
No betting system changes the edge.
Doubling your bet after a loss (Martingale) changes the shape of your bankroll's ups and downs — it doesn't touch the expected value of any individual bet. Sum the expected value across a full doubling sequence and it still lands at exactly (RTP − 1) × total staked, the same as flat betting the whole way through.
The Martingale tester simulates 1,000 full doubling sequences client-side and reports the bust rate and average outcome for whatever bankroll, base bet and target you configure — a live demonstration of this exact claim, not just an assertion.
And what we do when sources disagree.
Compute, don't transcribe
Every figure on this site runs through the same formula function shown on the page — not a static number typed into the markup from memory.
Cross-check independently
Where possible, a derived result is checked a second way — hand-derivation, Monte Carlo simulation, or a third-party source — before it ships.
State the gap, don't guess
When public figures for a platform genuinely conflict, the page shows the full range and says so plainly, instead of quietly picking one number.
Two current examples of that last point: the exact rakeback rate at each Stake VIP tier, and Roobet's real-money RTP across several games — both covered honestly on the Bonus & VIP hub and the relevant platform guides rather than asserted as settled facts.
See the formula
run on real numbers.
Every claim on this page has a live calculator behind it — free, no signup, demo only.