Are you a slots lover who loves to razz up the reels? Then maybe you want to know how online slot machines work. There are a lot of myths that players often believe about online slots, with many players suggesting some slots are fixed. Many slot players spin the reels in the hope to win a fortune without knowing how they operate. Well, let me fill in the gaps.

How are slot machines programmed?

EVERY online slot game uses a random number generator computer which creates random sequences every millisecond to ensure that every slot is fair and not fixed. This random number system is built into all slots and all licensed casinos, ensuring a fair playing experience. As it’s completely random, the previous spins won’t have anything to do with the winning sequence. If a slot has recently paid out a jackpot, it will still have the same odds of paying if the jackpot was never triggered – slots have no memory. It’s like flipping a coin, just because you’ve flipped heads ten times in a row, doesn’t mean tails is likely to land on the next flip!

Your luck is determined by mathematical equations, the moment you spin the reels, what colourful slot machine symbols appear next will be down to that RNG. Hopefully, this clears things up!

A screenshot of the Rainbow Riches online slot

Where do slot games come from?

Online slots are developed and built by gaming providers, that’s why many online casinos host the same selection of games. Gaming providers such as Microgaming, NetEnt, NextGen and WMS are some of the most recognized slot developers in the industry, having built many successful titles including Starburst, Mega Moolah and Gonzo’s Quest.

Here’s a tip: Most online casinos share the same games, right? So why would you play at any other casino when gives you money back on every bet, win or lose with no restrictions? It makes OJO sense, doesn’t it?

A collage of characters from popular online slots

How do you win on online slots?

The best strategy for winning at online slots is a hot topic online. But the reality on any single spin is that slot machines are pure luck. However, there are things you can do to maximise your chances and the playing experience. Let me break it down in tips:

  • Play your slot games at PlayOJO because you get money back on every bet, win or lose. No other casino does that. So, you may as well take advantage of this amazing benefit if you’re a slots player, right?
  • Look for the highest payout percentage. These can vary but are usually around the 90% mark but can go up to 97% so keep an eye out for those. The higher the payout percentage, the better your return for money.
  • Read the rules. Check out the slots rules before you play so you know what symbols/paylines etc to look out for. This page will also tell you how to trigger the bonus features where the biggest payouts usually are. Need more? Read our own slots guide for all you need to know about slots.
  • Know the promotions and offers. Good news, OJO offers plenty of Free Spin rewards and these are paid in cash with no wagering requirements. Anything you win from the Free Spins can be withdrawn as cash!
  • Consider playing the maximum coins, this is because you may not be eligible for the jackpots or bonuses. If the coin value is too much then maybe it’s worth spinning another slot with a lower max bet.
  • Want to play for longer? Then stick to single paylines. If you like to extend playtimes then play across a single line, you could still trigger the top win too!
  • Have good money management – Always stay in control of the bankroll. Keep track of your spend and consider setting limits.
Scores of characters from UK slot machines

Busting the myths of online slots

There are a lot of myths surrounding certain casino games, including online slot machines. Some players think they have a concrete strategy for winning online slots but there is no such thing. There is no wagering system which will allow players to consistently beat the house edge. There are ways to play smart but it all down to the luck of the spin.

Some players will say that certain games at certain casinos are fixed but this is not true. Online slot machines hosted on licensed online casinos cannot be fixed.  Another myth is that casinos can alter payouts and other factors remotely, online casinos have no control over games as they are built, developed and provided by third-party gaming companies.


How do progressive slots work?

This type of slot has a progressive jackpot funded by a tiny portion of player bets. Many progressives now have as many as 3 or 4 different jackpots, called ‘tiers’, and some progressives can get as big as £1 million. If you want to go even deeper into this type of game, check out our progressive slots guide.

What does RTP mean?

Return To Player is the percentage of bets which are won by players. For example, if a slot has an RTP of 95%, that means over a long period of time, 95% of all money wagered will have been paid back out to players. There’s much more to RTP than you think, which is why we’ve explained all about slots RTP.

Where do you find the maximum win?

Every game has a different maximum multiplier, maximum paytable win, and maximum actual cash amount. Some games show this in their intro page, some have it in their rules, and we also show the maximum win in pounds, in the info box you’ll see before you load up any slot.

What’s the minimum bet in slots?

Most slots have a min bet of 10p, give or take, though there are loads of great penny slots at PlayOJO, and a fair few with min bets of up to 25p. Whatever slots you choose to play, make sure you’re only betting what you can afford to lose, and betting small to keep things fun.


Aviva is the Content Manager at PlayOJO and writes blogs, copy and all things OJOey. A copy/content marketer for over 7 years, she gets her creative juices flowing by singing, dancing (around her living room), and belly laughing regularly.