Online slots are a type of casino game that uses a random number generator (RNG) to determine the outcome of each spin. The RNG generates thousands of numbers every second and the number that is generated at the exact moment you press “spin” determines where the symbols will land on the reels. This system ensures that all virtual spins are fair and impartial.

The RNG is a piece of software that is tested and verified by independent expert agencies to guarantee that all results are unbiased. The independent agency will check that the random number generator has not been tampered with by either the casino or the player and that the results are proportional to the actual theoretical projections.

Once the RNG has been tested, casinos can register players and begin offering the games. This process is simple and typically requires the player to enter their date of birth, full name, email address, home address, phone number and the last four digits of their social security number. The casino will then issue a unique identification number and password. Then the player can begin playing their favourite slot games for real money.

Whether you’re looking for a Megaways slot, a fast-paced instant win or a high volatility title, the best slot sites will offer a broad selection from many different studios. These include industry giants like NetEnt and IGT, as well as smaller boutique suppliers. You’ll find dozens of themes, low, medium and high volatility titles and a variety of upper and lower betting limits.