Kittywekey

An introduction to expected value and house edge.
Both describe the same quantity from different directions: the proportion of each wager retained on average across a very large sample.

This guide covers the figures published alongside games and explains what each one measures.
Return to player describes long-run payback, volatility describes how those returns are distributed, and the paytable states the rules that produce both.

An overview of licensing and what it provides. A licence authorises specific products in specific territories under stated conditions covering fund segregation, game certification, advertising and player protection.