Slot machines are a popular feature at both online and land-based casinos. With simple gameplay, varied themes, and a wide range of features, they appeal to many players. However, not every slot offers the same value over time.
Let’s look more closely at what separates higher-value slots from others, and how to find games that match your preferences.
Why Some Slot Machines Disappoint
Some slots might appear appealing because of their visual style or sound effects. But there are technical aspects that influence their long-term payout potential.
One of the most important is Return to Player (RTP). RTP refers to the percentage of total wagers a game is designed to return over time. For example, an RTP of 90% means that, theoretically, £90 is paid back for every £100 wagered over a long period of play. This is a statistical average and does not reflect short-term outcomes.
Volatility is another detail you may wish to consider. It describes how often and how much a slot tends to pay out. High volatility games usually pay less often but with higher potential amounts. Low volatility games tend to provide smaller returns more frequently. All outcomes are based on random results and are not influenced by previous spins.
Hot & Cold: Do Casinos Decide When Slots Pay Out?
A common question is whether casinos can influence when a slot pays. In the UK, licensed operators must follow strict rules set by the UK Gambling Commission (UKGC). Every slot must use certified Random Number Generator (RNG) software to ensure outcomes are random. 
All games are tested by independent bodies before they are approved for use. This testing confirms that the RNG works correctly and that the game performs within expected parameters. Licensed casinos cannot alter outcomes based on player behaviour or patterns.
Some players refer to games as “hot” or “cold” depending on recent results. These terms are based on perception, not fact. Each spin is a separate event with no link to what came before.
If you're looking for detailed information about a game’s RTP and features, you can usually find it in the game’s rules or information section.
Notorious Low-Paying Slots
Some slots are known to offer lower RTPs compared to others. This can be seen in certain older or themed games, including some based on films or TV shows. These titles often feature RTPs around 88%, which is lower than many modern online slots. While still permitted under UK regulations, this is less than the average range of 95% to 97% commonly found in newer games.
A lower RTP does not guarantee poor outcomes in a session, just as a higher RTP does not ensure a return. All slots operate on random outcomes, so results vary from one spin to the next.
Are Better Slots Out There?
There are many slot games available with features that suit different preferences. Some offer higher RTPs. Others provide features like free spins, cascading reels, or Megaways mechanics. These elements do not change the expected return but may affect how the game plays.
You may prefer games based on a theme or gameplay style. Whether you’re drawn to visual design or particular bonus mechanics, there are options available.
We offer a range of themes, including the Egyptian-themed Eye of Horus slot, fishing-themed Big Bass Bonanza, and ancient Gods-themed Gates of Olympus.
Every game is random. Checking the information provided could help you decide whether a slot suits your interests and play style.
How To Pick a Good Slot Machine
With so many games to choose from, knowing where to start can be difficult. Many players look at the RTP first. This figure shows the long-term expected return based on large numbers of spins. Most UK online slots list RTPs between 95% and 97%, though there are exceptions.
Features such as bonus rounds or free spins may add variety to gameplay. These features don’t change the RTP but can make the experience more engaging depending on what you’re looking for.
Each slot includes a paytable and game rules section. This is where you’ll find important details like paylines, bonus features, and RTP. Reviewing this information might help you make choices based on your own preferences.
Play Slots Online at Slots UK
At Slots UK, you’ll find a broad choice of online slot games to discover. Our site includes straightforward classics, games with modern visuals, and plenty with bonus features like cascading reels or Megaways.
Every slot here includes clear game information so you can check features and RTP before playing. You can feel confident knowing that our site is licensed and regulated by the UKGC, and our games go through rigorous fair testing using reliable RNG systems.
Every slot is random, and the only certainty is entertainment on your terms. Take a look through our game selection at Slots UK and see what stands out to you.
**The information provided in this blog is intended for educational purposes and should not be construed as betting advice or a guarantee of success. Always gamble responsibly.
*All values (Bet Levels, Maximum Wins etc.) mentioned in relation to these slot games are subject to change at any time. Game features mentioned may not be available in some jurisdictions.