How we rate, test and calculate

The casino rating model

Each operator in our comparison table gets a score out of 5, built from five weighted criteria:

Scores in the table are editorial judgements against these criteria, not a measurement instrument. Two things they explicitly do not encode:

• Bonus size. A bigger bonus is a bigger wagering requirement, and bonus terms are the single most common cause of a blocked withdrawal. We treat clear terms as the positive signal, not headline numbers.
• Commission. How much an operator pays us has no input into the score. See our editorial policy for the funding disclosure in full.

What our casino ratings cannot tell you

Since the Promotion and Regulation of Online Gaming Act, 2025 took effect, every operator offering Aviator for real money to Indian players is doing so from outside India, in a category the Act prohibits. No rating fixes that. A 4.9 in our table means "better than the alternatives on the criteria above", not "safe", "legal" or "regulated in India". The legal page is the context that column belongs in.

How we compute the probability tables

Every odds figure on this site comes from one model, stated openly so you can check it:

P(a round reaches multiplier x) = 0.97 ÷ x

This is the standard 97% RTP crash curve. It produces the ~3% of rounds that crash instantly at 1.00×, the 1.94× median, and the full distribution on our RTP page. Derived figures:

How we simulate strategies

The strategy results on our strategy page come from a Monte-Carlo simulation we wrote for this site:

• 200,000 independent sessions per betting system.
• Each session: ₹2,000 bankroll, ₹20 base stake, 2.00× cash-out target, up to 100 rounds, with the stake capped at the remaining balance.
• Crash points drawn as 0.97 ÷ U, where U is uniform on (0,1), floored at 1.00× — the standard model behind a 97% RTP crash game.
• Systems implemented as normally described: flat, Martingale (double on loss), D'Alembert (±1 unit), Fibonacci (up one step on a loss, back two on a win), Paroli (double on win, reset after three).
• Reported: median end balance, share of sessions ending in profit, share wiped out, average total staked, and drawdown percentiles.

The validation check that tells you the simulation is sound: flat staking puts ₹2,000 through the game in 100 rounds and finishes at a mean of ₹1,940 — exactly 97% of the amount staked. Any implementation that does not reproduce that is wrong.

We publish the ugly columns alongside the flattering ones on purpose. Martingale genuinely wins 61.1% of sessions; it also wipes out 33.2% of them. Both numbers come from the same run.

Our tools

The calculators and simulators on this site are built on the same maths and run entirely in your browser — nothing you type is sent anywhere.

• The practice simulator generates crash points with 0.97 ÷ U, so its long-run behaviour matches a real 97% table. It uses virtual credits only.
• The probability calculator returns 0.97 ÷ x for a target, plus the dry-streak figures derived from it.
• The win and risk calculators show the payout and what a normal losing streak does to the same bankroll, because a calculator that only shows the good half is marketing.

None of them predicts a round, and none ever will. That is not a limitation of our implementation, it is a property of a provably-fair game — explained here.

When we update

• Legal and tax pages: whenever the position changes. The Act's Rules took effect 1 May 2026 and the Supreme Court challenge is pending, so this is live.
• Casino table: when an operator's terms, payment methods or Aviator implementation change materially.
• Maths and simulations: when we improve the model. The method above is versioned in the text, so a changed method is visible rather than silent.

Found an error? Tell us via the contact page — see the corrections section of our editorial policy for how we handle it.