History of Slot Machines

Slot games are also known as one-armed bandits or fruit slot machines in the UK. They are one of the most recognisable casino machines and also one of the oldest forms of gambling. They have been around since the 19th century and originated in the United States of America. Nowadays, you can find slot games in pubs, casinos, online and game arcades among a whole host of other areas.


The precursor to the modern day slots was a gambling machine. It was developed by Sittman and Pitt of New York City, the USA in 1891. The original was based on poker and contained a total of five drums which held a total of 50 cards.

The machine increased in popularity. Then soon became available in bars across New York, many of whom had more than one. As there was no direct payout mechanism, successful players would receive a free beer.

Around the same period, Charles Fey invented a simpler automatic mechanism with three spinning reels that displayed five symbols – horseshoes, diamonds, spades, hearts, and a Liberty Bell which gave the machine its name.

First Electromechanical Machine

Bally Manufacturing created the first fully electromechanical machine in 1963, which was called Money Honey.

It was the first machine with a bottomless hopper and automatic payout, of up to 500 coins, and could run without the help of the attendant.

The progress went even further after that, and the develop of first video slot machine was in California in 1976 by Fortune Coin Co., in Las Vegas. Following ‘cheat-proofing’ modifications, it had an approval by the Nevada State Gaming Commission in 1978.

Multi-line Slot Machines

Since the 1990’s, multi-line slot machines have become increasingly popular simply because they have more than one pay line with numerous potential winning combinations.

Slot Games Today

Modern machines now have PRNGs (Pseudo Random Number Generators.) Which continually generate random number sequences which in turn determine the result when someone plays. To prevent advanced players, who may know the programme of the machine, from predicting the sequence, the best ones now continue to generate numbers even when the machine is not in use.

Nowadays, slot games are available all over the place. Also, with the revolutionising of technology, players can take part in slot games from the comfort of their phone or laptop with online casino applications and websites.

Most of the games follow similar rules. Though a lot now have differences regarding imagery and themes along with appearance. Some slot game features also feature in television game shows.