The principles outlined in this article can be applied to almost any game of chance in which the player plays against the house. In other words, all games where a casino collects bets and pays out potential winnings. The most famous of such games are: realmadrid888 Slot Machines , Roulette , Blackjack  and  Baccarat . Most of you know that these games are somehow set up to give the casinos a certain long-term advantage. Otherwise, casino owners would be losing money by maintaining those games.  

The casino edge for each game is determined by the rules of the game and the payout percentage in the event of a win. If these rules are applied over many, many rounds (sometimes hundreds of thousands of times), casino owners can be fairly certain that the amount of bets collected will exceed the amount of wins paid. Statistics work in favor of casinos in the long run.

Even though the long-term statistics work against you, it is very common to come to a casino, play, win, and fold with your winnings. The main reason is that your visit to a casino consists of only several dozen rounds of play. In this case, the statistics do not have enough time to converge (appear). The outcome of your visit to the casino is then more determined by chance (or your luck, if you prefer). It is exactly this probability which helps lucky players to win and beat the casino’s statistical advantage. To increase the chances of beating the statistics, it is very important to know two basic characteristics of each game: the payout ratio and the variance

Gambling and Payout Ratio (RTP: Return To Player)

The payout ratio (also known as payout percentage, RTP – return to player) of a game of chance  is the long-term statistic of the total money won, divided by the total money stacked. The opposite of the payout percentage is the house edge. The house edge is calculated as 100% minus the payout percentage. If the payout percentage is 95%, then the house edge is 100% – 95% = 5%.

Roulette payout ratio

In European Roulette , the probability of winning when betting on the color black is 18 black numbers divided by 37 total numbers (don’t forget zero). The payout is 2 times the bet. The roulette payout percentage is then 2 * 18/37 = 0.973 = 97.3%. The house edge is then 100% – 97.3% = 2.7%. The game of Roulette is set to have the same RTP for all types of bets (color, numbers, etc.).

RTP Blackjack

As the rules of Blackjack can vary from casino to casino, it is expected that the RTP will vary as well. But generally, a game of Blackjack with basic strategies used gives an RTP of around 99.5%. Live, in online Blackjack the expected RTP changes as the dealer deals cards from the deck. The RTP in this case is usually between 95% and 102%. This is taken advantage of by card counting players who estimate the current RTP of the Blackjack deck and try to bet high if the RTP is above 100%, to make a long-term profit. On the other hand, casinos also have ways of detecting such card counters and preventing them from winning.

Slot machine payout percentage

The RTP of slot machines is usually between 92% and 97%. The payout percentage for slot machines is determined by the symbols on the virtual reels, by the pay table, and by other specific rules applied to each particular game.…


Typically after signing up as a new player you will have the option to request the relevant welcome offer. However, follow the advice for bonuses from the experts.

However, in order to request a welcome bonus it will be necessary that:

  • Register as a new player at the online casino
  • Make a minimum deposit that will vary depending on each casino (for example, it can be € 10 or € 20).

Don’t forget to check which games the welcome bonus is available for!

These bonuses are a great way to publicize the different casinos and how they work. In fact, they can be considered part of a casino’s cover letter.

They are generally the most generous offer you will receive at an online casino.

X% welcome bonus, up to € Y

Let’s take an example to illustrate it.

Let’s suppose that the registration bonus is  50% on your first deposit proton888, up to a maximum amount of € 100 and that the minimum deposit you have to make to request this bonus is € 10.

Therefore, if you make a deposit of € 20 you will receive another € 10 to play (50% of your deposit). In this way, you can play with € 30 (your initial deposit + the bonus).

On the other hand, as the formula indicates, in this case you can receive a maximum of € 100 in bonus.

X% welcome bonus, up to a total of Y € + Z free spins

Wagering requirements on welcome bonuses

This means that before you can withdraw the bonus or the earnings derived from it, you will have to  meet a series of conditions.

Normally these requirements will make you play or bet the bonus amount and / or the deposited amount a minimum of times. Let’s take an example to explain it better:

  • Promotion:  100% bonus on your deposit, up to € 100. Minimum deposit € 10.
  • Wagering requirements:  Play the bonus amount + the deposit 30 times or more before you can withdraw the money won.

If you deposit € 10 you will receive a 100% bonus on your deposit (€ 10 extra). In order to withdraw your winnings you must bet the deposited amount (10) + the bonus (10) a minimum of 30 times. That is: (10 + 10) x30 = € 600.

Therefore, before you can withdraw your winnings, you must  play for real money € 600.

Examples of wagering requirements

  • Bet 40 times the deposit
  • Play 40 times the bonus
  • Play 35 times the deposit + the bonus
  • Bet 30 times the winnings

In some very specific cases, online casinos also offer  bonuses without wagering requirements .…


The bonus free spins or free spins serve to play slots and online casinos often offer them to promote new games. It is important to know the use that can be given to this type of voucher and how it works.

What are Free Spins?

As the name suggests, these types of bonuses provide players with a series of extra spins to play a specific slot machine or to be used by the slots that are part of the promotion.

Typically these bonuses are subject to wagering requirements that the player must meet before they can withdraw their winnings. We will discuss these requirements later, also known as  rollover .

The value of these runs may vary depending on the promotion, therefore, never forget to check it out.

The operation of the free spins offered by online casinos is very simple. Even with everything, we are going to explain it in detail so that there is no doubt about it.

These are the steps you must follow to enjoy the free spins or spins:

– Open an account or log in to the casino that offers free spins

– Find out about all the conditions of the promotion

– Deposit the indicated amount (if it is necessary to receive the bonus)

– Request your free spins bonus through the channel indicated by the casino

– Receive your extra spins to start enjoying the indicated games

– Access the slots in question and play without spending your money

– Try to get all the money you can!

– Meet the wagering requirements indicated in the bonus terms

– Withdraw your winnings using the payment method of your choice!

If the casino allows it, it is always a good idea to play a couple of games in demo mode before spending your free spins. In this way, you can see how the slot in question works.

Free Spins with deposit vs Free Spins without deposit

There are two main types of bonuses in reference to Free Spins:

Free Spins No Deposit Bonuses

Free Spins Bonuses with Deposit

Free Spins No Deposit Bonuses

It is common for online casinos to offer no deposit free spins to new players to familiarize them with the casino while playing slots.

To receive these spins you will not have to make any type of deposit, just register at the casino.

However, this type of bonus is usually subject to quite high withdrawal limits and wagering requirements. Also, progressive slots are almost always excluded from the promotion.

Free Spins Bonuses with Deposit

On the other hand, deposit free spins bonuses are usually aimed at existing players. To order them it will be necessary to make a minimum deposit.

The good part about these types of bonuses is that generally the wagering requirements are lower and the withdrawal limits are higher.

Also, sometimes these wagering requirements don’t even exist. The form of these bonuses is usually the following:

“Make a minimum deposit of € 10 and you will receive 15 free spins for X slots. Each free spin has a value of € 0.02).”…