So, what exactly is RTP you ask? Well, first off, it tells you how much of all the money bet on a casino game / online slot game will be paid back to players over a certain period of time. RTP is always expressed as a percentage, and the higher the value, the more often you can expect to win over a certain amount of time. Not only does each slot have its own RTP, so too does each online casino, and it is based on the average value of the RTP percentages of all the casino games they have.
Having said all that, it’s important to note that RTP is only a theoretical statistical calculation and should in no way be taken entirely at face value. RTPs don’t consider huge random wins and longer streaks of losses, it only gives you an average estimation for the game in question.
RTP can also be looked at as the flip side of the house edge. If a game has a house advantage of 5.26% for example, the RTP could be seen as 100% i.e. 5.26% = 94.74%. But again, this is in theory only.