Return to Player percentages or RTPs are important when it comes to making money over time with online slots. While a lot of people play these games purely for the enjoyment aspect of them, others like to make some decent cash while doing so.
The higher the RTP value is, the greater the chance of you winning will be. This value balances out the short term variance to give you an independently measured assessment of the RTP over the long run.
Therefore common sense dictates that you want to play games that have the highest RTP as possible. Obviously no game is going to have a RTP of 100% or else the house will not have an edge. The house is nearly always going to have an edge which is why the next logical question that may be asked is there online slots that have a RTP of 99%?
You are going to be hard pushed to find many slots that have an RTP of 99%. Mega Joker from the team at NetEnt does have one but this is one of the true rarities. The reasons for this are down to the house edge not being big enough for the casino.
They want to usually have at least an edge of 3-4% on the players for it to be worth their while to be in operation. They have to pay expenses for licensing games form developers as well as the high costs that are incurred with running an online gambling site. They would not be able to make money if they had loads of games with an RTP of 99%.
Any RTP higher than 98.5% is pretty unbelievable whereas the 98% range is superb. Anything around 94-95% is generally acceptable.
Therefore you should be more than happy with the couple of dozen slots that have an RTP of 98% as that is really the best that you can possibly expect to get or else the casinos will be bankrupt within days of launching a close to 100% RTP game.