Casino - How Does William Hill Test The Games For Fairness?

All games at William Hill (except Live Casino and Sports betting) use a Random Number Generator (RNG) to determine the outcomes of game rounds. Each game has its software and RNG tested and certified by an external, independent company, to ensure that the game is built and designed to work as specified by the developer. The testing companies are approved and comply with the regulatory standards of many governing bodies and jurisdictions worldwide, including Gibraltar and the United Kingdom.

External compliance testing, as well as the regulators, check that a game’s RTP (Return to Player) is in-line with the technical specifications that were set. This is done by simulating gameplay against the RNG and testing anywhere between 1 million and 10 million game rounds. For games that involve strategy, (Blackjack, Poker etc) the optimal strategy is implemented, and for games of chance, a random bet choice is implemented.

If the frequency of winning combinations and the expected RTP is within a satisfactory range compared to the stated RTP in the technical specifications, the game is certified as compliant to the required regulatory standards.

Further to this, we ensure that the game display, transactions, functionality and mechanics match the Technical and Operating Standards of the regulators. We routinely monitor game activity to ensure that it remains compliant and that the stated RTP for the game is within an acceptable range over the course of a game’s lifetime, as well as carry out testing to ensure that the functionality is correct.