The key to making your JavaScript slot machine game fair and fun is randomness. This is achieved by using a random number generator (RNG) to determine which symbols will appear on the reels.

The code isn’t shown, but we know for a fact that Arduino slot machine code is out there already. Check out the build and demo video after the break.

Aristocrat claims its arch rival Ainsworth and a former employee had access to the secret mathematical codes behind its most popular machine and "flagrantly" breached copyright.