The psychology behind slot machines: Why the sounds and graphics matter

The history of graphics

Picture a slot machine. Chances are, you’re imagining the classic set-up of 3 reels, bright fruit and shimmering gold bars promising big wins. Over time, casino games have evolved to suit the modern era while maintaining their traditional roots. Game providers often repackage the same themes because, for the suspicious gambler, consistency is key.

Game providers want their products to feel familiar to players, which is why they have retained certain features, such as the iconic 3-reel setup.

To make progress and updates without isolating players, companies have evolved within the bounds of familiarity and retained the traditional graphics and audio. 

Why can graphics be deceptive?

Naturally, the graphics of a game can sway a player’s opinion. When a slot game appears to be older or low-quality, players might be inclined to think they can outsmart the system. However, these games are designed the same way, no matter when they were released. 

Players can also be swept in with impressive graphics or fancy themes, but that doesn’t necessarily mean that the game has better odds. Some games are designed with high-quality graphics to distract from the low RTP (return to player). 

The visual trap	The mathematical reality
"Vintage" / Low-quality graphics	Does not mean the system is easier to beat.
"Premium" / High-def graphics	Often masks a Lower RTP to pay for licensing.
Flashy animations	Designed to distract from the house edge.

How to pick a theme

Prioritise having fun when playing and make sure you are picking themes you genuinely enjoy. Themes play a crucial role in the success of a game, and sometimes it is the abstract ones that are the most attractive. 

Simple, classic games will always have a place in the market, but there has recently been a rise of more complex themes that align with consistency and familiarity. You’ve probably heard of Book of Dead or Big Bass Bonanza, games that have become front-runners amongst their respective themes. Ancient Egypt and fishing themes are both great examples of themes that can be curated into the perfect slot game, as they both capitalise on bright colours and simple storytelling. 

Is the soundtrack important in casino games?

Believe it or not, the soundtrack behind every game has a large psychological effect on the user. 

Even as far back as 1912, professional gambler John Quinn said, 

“The addition of music to the slot machine is intended to create a passion for throwing nickels and dimes.” 

So, music is a tool used to distort reality?

Not necessarily. A 2009 study debunks this by showing users have more time awareness when listening to the soundtrack. Whatever you believe, music is used to transform mundane gameplay, always intending to deliver a memorable experience.

What is specific about the music they use in slot games?

An experienced sound designer revealed on Reddit that there is a recipe to create the perfect soundtrack for a slot game. 

The composer will avoid minor chords as much as possible, using the major scale to shift excitement and anticipation. He also reveals that anything below 125 beats per minute is too slow, but a study notes that a fast tempo only increases the speed of betting rather than the bet amount or money spent.

You’ll notice that the music often changes when entering a bonus segment. These high-energy rounds are what many players look for when hunting for free spins bonuses, as they signify the highest potential for big wins. With this evolving excitement, be cautious of gamers’ fatigue. 

Thankfully, most online casino games offer the option to mute the game for a calmer experience!

Should more be done to stop sound effects and visuals from encouraging gambling?

With the rise in those trying their luck at gambling, we have also seen an increase in helpful resources addressing addiction and supporting mental health. 

From a business perspective, those engaging visuals and catchy soundtracks are a major selling point for games, so stay vigilant! 

Here are a few helpful tips to keep you from getting distracted by the aesthetics of a game:

Staying vigilant is key to a healthy experience. If you’re ready to play responsibly, you can find a curated list of trusted online casinos that prioritise player safety and fair RTP.