New Zealand Gazette – 1994 – No. 114

Page 3392

✨ Gaming Regulations



3392 NEW ZEALAND GAZETTE No. 114

This part applies to all games incorporating an element of chance, and therefore requiring a random selection process.

D.2. Random Selection Process

D.2.1. Software RNG versus Hardware RNG

The Authority does not mandate the method of random number generation. A pseudo-random number generating algorithm, a dice shaker, a selector of keno balls, or a roulette wheel, etc. may all be acceptable RNGs.

D.2.2. Requirement for Random Number Generators

The fundamental requirement is that the use of a random number generator (RNG) results in the selection of game symbols or production of game outcomes which are able to be proven to:

  1. Be statistically independent,
  2. Be uniformly distributed over their range,
  3. Pass various recognised statistical tests, and
  4. Be unpredictable.

D.2.2.1. Additional Requirements for a Software-Based RNG

D.2.2.1.1. Choice of Algorithm

The choice of algorithm is at the discretion of the supplier of equipment.

D.2.2.1.2. Background RNG Activity Requirement

  1. The RNG must be cycled continuously between games.
  2. At the time that a play button is pressed the random sequence of numbers currently available is to be selected.

D.2.2.1.3. RNG Seeding

  1. The method of seed generation must ensure that the same sequence of random numbers is never used in more than one device at the same time.
  2. Seeding and re-seeding must be kept to an absolute minimum.

D.2.3. Scaling Algorithms

  1. If a random number with a range shorter than that provided by the RNG is required for some purpose within the gaming machine, the method of re-scaling, i.e. converting the number to the lower range, is to be designed so that all numbers within the lower range are equally probable.


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🏭 Game Design Requirements (continued from previous page)

🏭 Trade, Customs & Industry
Gaming Regulations, Game Design, Random Number Generators, Prize Tables, Game Features