Slot machines that really give you a chance to win differ in a number of criteria. Among them are RTP, bonus functions, volatility or variance. After evaluating these parameters in combination, the user can choose the most profitable game.
RTP (return to player) is the ratio of the return of the casino pinup slot, expressed as a percentage. The parameter determines the payback of the game over a specific time period. With short sessions, the returns vary significantly from very low to as high as possible. But when playing for a long time, its percentage will be closer to the RTP value set by the manufacturer.
Volatility and frequency
Volatility determines the level of risk in a slot machine. Slots where it is low give frequent small payouts. High-volatility devices, on the contrary, pay less often, but larger amounts. The frequency of winnings is very similar to the variance, since it determines the frequency of payments. This is the percentage probability that the machine will give out prize money on any of the spins made by the user. The frequency does not say anything about the amount of payments. It only determines with what regularity they come.
Variance is a mathematical term from statistics and probability theory. In the context of slots, it talks about the frequency and amount of payouts. The indicator determines the level of risk. Those who want to receive a large payout, choose highly dispersed machines. Their behavior is changeable and unpredictable. The devices deviate greatly from the average percentage of return laid down by the manufacturer.
Slots with low variance behave the opposite way. They deviate less from RTP, so they are predicted more easily. Such machines pay money more often, but the winnings in them are much smaller (usually do not exceed x100 of the bet).
In a well-known device from NetEnt, the percentage of return reaches 98%. It is dedicated to the theme of vampires, whose portraits are used as symbols. There are many unusual features in the slot. There are wild and scatter free spins with triple multipliers, a prize round in which additional coins are available.
Kings of Chicago
The NetEnt slot machine combines the advantages of a classic slot and video poker. It has a high return — 97.8%. The payouts are not for combinations of identical symbols, but for the loss of poker combinations on the lines. The joker replaces all cards. And three or more scatters activate free spins with an additional multiplier.
A historical slot machine from Microgaming on the theme of the legend of King Arthur and the sword Excalibur. Its return reaches 97.6%. The gameplay includes 5 reels and 60 lines. There is a wild and a scatter, a round with free spins, increased coefficients.
Big Bad Wolf
A slot machine from Quickspin based on the famous fairy tale. Its theoretical profitability is 97.34%. It includes 5 reels in 3 rows, 25 lines on which combinations are formed. There are free spins and respins, the ability to double the prize money, as well as the function of activating additional wilds.
Book of Dead
A slot on the theme of ancient Egyptian treasures with a return percentage of 96.21%. Includes five reels in three rows. There are 10 paylines, and their number is regulated. The volatility is from medium to high, so with a successful combination of circumstances, you can get a big win.