Aviator RTP and fairness
Aviator is the crash game Spribe launched in February 2019, first for the Georgian operator Adjarabet. This page gathers what can be sourced about its return to player, its maximum win and its provably fair system, links each point to where it comes from, and notes where published figures conflict or no first-party document could be found.
| Parameter | Value |
|---|---|
| Published RTP | 97% |
| House edge | 3% |
| Average return per 100 units staked | 97.00 |
| Facts last checked | October 22, 2026 |
The facts and where they come from
| Fact | Value | Source |
|---|---|---|
| Developer | Spribe (legal entity Spribe OÜ, Estonia; founded 2018 in Tbilisi) | iGaming Business |
| Launch | February 2019, first at Adjarabet | Gambling Insider |
| RTP | 97% default; some operators reportedly run about 94% | GameClubz, Corriere dello Sport |
| Maximum win | No universal cap published by Spribe; 10,000x is the figure most often quoted | Corriere dello Sport, GameClubz |
| Fairness | Provably fair: server seed plus client seeds of the first three bettors, SHA-512 | Corriere dello Sport, GodisaGeek |
| Bets per round | Two, each with its own cash-out | GameRules |
Spribe's own website could not be reached when this page was checked, so the table rests on trade press and independent reviews rather than a first-party document.
Provably fair, explained
Aviator is one of the few mainstream crash games with a published provably fair scheme. Before a round starts, Spribe's server generates a secret server seed and shows players only its hash (SHA-256). The first three players to place a bet each add a client seed generated in their browser. When the round is over, the server seed is revealed, and the crash point is derived by hashing the server seed together with those three client seeds using SHA-512. The server committed to its seed before any bets arrived and the players' seeds were added afterwards, so neither side could pick the result alone.
What a player can check:
Step 1. Before the round, note the server seed hash shown in the game's fairness settings.
Step 2. After the round, the full server seed is shown next to the result together with the client seeds used.
Step 3. Hash the revealed server seed with SHA-256 and confirm it matches the hash you noted. A match shows the seed was not swapped after bets were placed.
The sources above do not spell out Spribe's exact formula for turning the SHA-512 output into a multiplier, so recomputing the multiplier yourself depends on the in-game checker. Provably fair also does not mean a round favours you: it proves the result was fixed in advance, and the house edge sits inside that result.
What 97% means at the table
Over a very large number of rounds, 97 of every 100 units staked come back as winnings. In a crash game this works out to a simple rule: a target of x is reached in roughly 97/x percent of rounds. A 2x target lands about 48.5% of the time and 10x about 9.7% of the time. The Aviator RTP guide covers the maths in more depth.
Points to check at your casino
- RTP version. Reviews report that some operators run a configuration below the 97% default, around 94%. The rules screen inside the game shows the value your casino uses.
- Win cap. The highest payout is set by the operator. 10,000x is common but it is not a Spribe-wide constant, and a casino may also cap the cash amount of a single win.
- Two bets. Splitting your stake across both bet slots does not change the edge; it doubles what is exposed to it each round.
- Free bets and Rain promo. These are casino promotions layered on top of the game and are not part of the 97% figure.
- The name. Ownership of the Aviator trademark is disputed. Spribe obtained an interim injunction in the UK against Aviator LLC, while a Georgian court of first instance ruled against Spribe in August 2024, with appeals pending. This page is about Spribe's game.
How this site uses these figures
The results, records and dataset on this site come from a model built on the published 97% RTP, with 10,000x used as the model's cap; they are not collected from casinos. The methodology page explains the model and its limits, and the calculators apply the same figures to your own stake.