As with any game of pure chance, there is no real effective strategic system for winning at slots. Never believe if somebody says that he has an incredible winning strategy. The slots are casual, there is nothing that can influence the outcome of the game. The machines have no memory, so there is no effective way of outsmarting them. But there are some tips, which you can use as a basic strategy. Try to play slot machines that have the highest payout. You want to find anything above 95%. Similar to other casino games, it is crucial to know the odds and probabilities of the machine you're playing. There is a payout table for each slot, so make sure you read it before inserting coins. Determine your losing limit for the day. Stop playing when you reach this losing limit. When playing remember that you can win as well as lose. The machine will not feel bad if you spend a lot of money and don't get anything back. If you think that the machine you are playing will hardly pay anything out you’d better stop playing it. If the machine pays out good you’d better make higher bets. Make lower bets if you are slumping. Find a machine that suits your bank-roll. Play dollar machines if you don’t have much money. Before leaving the casino don’t forget to cash out the credits. Sounds obvious, but a lot of people forget! Never make high bets if you play slots you have never played before.

There are a lot of myths and superstitions about slots.
You can spot a winning slot machine.
The only way one can say that theslot machine is a winning one is only to catch this moment, when the machine pays out. RNG is the main element of every slot machine and one never knows what combination it will form.
Casinos place loose slots near the cashier, aisle ways, etc.
In reality it is not to casino’s advantage to place loose slots at one and the same place, because in this case gamblers would play only these slots. The slots are mixed and nobody can say for sure whether this slot is a loose one or not.
Count the number of symbols on the reels to determine your odds.
This is mathematically impossible, remember the RNG (random number generator) determines the stops. Thereare literally millions of combinations on a 3 reel slot machine, so there is no way of determining odds by the symbols on the reels alone.
Casinos can tighten or loosen slot machines from the back office.
In order to change how a slot willpay out is by changing the computer chip. No casino can just flip a switch.
A slot machine that has not been paying is due to hit.
Absolutely false. The RNG assures this. You have an equal chance of winning on a losing machine as you do on a machine that just paid out the jackpot.
Pulling the slot machine handle produces more wins than pressing the spin button and visa versa.
Again false. It makes no difference, as the computer only uses these as mechanisms to start the game. Only the computer determines a win or a loss and it has already determined if you are a winner or loser even before the first reel stops spinning.
Playing with hot coins improves your chances.
Once again, the computer determines a win or loss and the temperature of the machine or moneyirrelevant. Although it's funny that people still burn their fingers with lighters believing this works.
Casinos set slot machines to payback more on the weekends.
Wrong again. Your odds of winning are the same no matter if it's 4:00pm Monday, 8:00pm Saturday or 3:00am Wednesday. Casinos can not and do not do this.

The USA
The United States state governments regulate the availability of slot machines. Many states have established gaming control boards to regulate the possession and use of slot machines. There are no significant restrictions against slot machines in Nevada. New Jersey allows only hotel casinos operated in Atlantic City to have slot machines. Only licensed riverboats or permanently-anchored barges are allowed to have slot machines in some states. Delaware allows slot machines at three horse tracks. State lottery commission exists for their regulating.

Casinos: Native American
There are no slot machines in Native American casinos located in reservations. When the tribe first reaches a pact with the state in which it is located it gets the permission to have them. The state is entitled to receive a fraction of the gross revenue from slot machines by the pact.

Slot Machine Classes
No federal law governs slot machines. There is no universal classification for all states. Some states have restrictions on the type of slot machines that can be used in a casino or other gaming area. The operation of "Class III" (or "traditional") slot machines is fulfilled from a centralized computer system. A player's chance of winning any payout is the same with every play. You can find Class III slots in Nevada or Atlantic City more frequently. They are sometimes referred to as "Vegas-style slots".
"Class II" slot machines ("video lottery terminals" or "VLTs") are connected to a centralized computer system. It determines the outcome of each wager. Each machine has an equal chance of winning a series of limited prizes. A fee for each Class III game is paid by the casino to the state. The regulations for Class II games are not so tight.

Characteristics Of Class II Games
The player is playing against other players. The prize is common. One player always wins the game. The game stops when the winner appears. A given set has a certain number of wins and losses. The combimation can occur again only after a new batch is initiated. One game is dependent on previous games. The player is an active participant of the game. The same set of numbers is played by all players.

Characteristics Of Class III Games
The opponents are the player and the house. There is no connection between the previous and the next games. Any possible outcome can occur in any game.

Slot Clubs
In American casinos there are "slot clubs" the membership of wich is free. They return a small fraction of the amount of money that is bet in the form of comps (complimentary food, drinks, hotel rooms, or merchandise). These clubs require that players use cards to insert into the slot machines. Comps or "cash back" allows to make the differences in the maximum theoretical returns significant.

Slots In Australia
Queen of the Nile (manufactured by Aristocrat) is one of the most popular Australian poker machine games. Australian slot machines are called Gaming Machines. Australian-style gaming machines frequently use video displays to simulate physical reels. There are five of them in most cases. The use of gaming machines in Australia is regulated by the laws.
There are Gaming machines not only in casinos but also in pubs and clubs in some states. New South Wales legalized this style of gambling first. In 1956 they were made legal in all registered clubs in the state.
Only particular forms of gaming machine are permitted to be used in Western Australia.

Britain
In Britain slot machines are known as fruit machines, one-armed bandits and AWP. Pubs, clubs, arcades, and some take-away food shops have fruit machines. There can be 3, 4 or 6 reels with around 16 or 24 fruit symbols printed around them. These reels are spun. If certain combinations of fruit appear, winnings are paid from the machine. Slot machines seen in casinos and elsewhere around the world are similar to these machines. These games have lots of extra features. There exists a strict jackpot limit. The UK fruit machines have some features. There is an opportunity for a player to hold one or more reels before spinning. It sometimes increases the chance of winning. A player may also be given a finite number nudges following a spin. A single-step rotation of a reel of the player's choice is a called a nudge.
The maximum payout for an individual game is different depending on the type and the location of the machine. Private members' clubs are allowed "club machines". They have higher jackpots and are allowed to charge more per game.
These machines and American slot machines operate differently. The probability of getting the jackpot in each game is independent of any other game.
The AWP fruit machine is popular across Europe and in countries such as the Czech Republic, Russia, and Ukraine.

Slots In Japan
Pachisuro is the name for Japanese slot machines. The traditional Japanese pachinko game is their ancestor. Slot machines are new phenomenon. Pachinko parlors and the adult sections of amusement arcades, known as game centers have them.
Regulation of the machines is fulfilled by IC chips. There are six different levels changing the odds of a "777". All machine varieties have certain rules and regulations.