Some players consider RTP to be very important when playing online casino games, particularly slots. The RTP is short for Return to Player percentage. It represents the percentage of the total wins a slot is likely to pay out compared to the overall stakes wagered.
It is information gathered through general statistics based on millions of rounds. The RTP indicator is telling you how generous a specific game is.

Know What RTP Stands For
The RTP of a slot machine is measured over hundreds of thousands of spins, even more. This is done to ensure that the return percentage is as accurate as possible over a longer period.
So if we take a slot that has a 95% RTP, this means for every $/€/£100 you stake, you are likely to win back $/€/£95 in the long term, statistically.
Keep in mind that the payouts are balanced out over a longer session, and you shouldn’t expect to see its manifestation over a few spins.

Play Games With the Highest Return to Player Rate
The higher the RTP, the better for your overall results. Therefore, seek out slot games with the highest return to player rates. Gambling games with an RTP rate of 94% or higher are considered good.
Do not play games with RTP values lower than this, as you will see barely any profit. Most modern online slots feature RTP percentages in the 95-97% range, which is great.

Always Check the Slot Volatility as Well
To make the best picks, do not just focus on RTP, as this info is mainly theoretical. The volatility is another factor you need to keep in mind before you start playing.
With increased volatility, the RTP gets less accurate. So, looking at slots, you have a choice of high, medium-high, medium, low-medium and low volatility.
Depending on what kind of experience you are after and how long do you plan to spend playing, you can go for lower volatility (small wins won frequently) or higher volatility (bigger wins far apart).