slot game development
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Slot machines are becoming more digital and less mechanical and mimic computers more than they did 30 years ago. Virtual slots offer the same kind of thrill and excitement that mechanical slots do but are more flashy, colorful, and capable of multiple levels and themes. While the principles of slots are easy, developing them isn’t. Let’s go over the process.

Key Elements of Slot Machine Development

Since modern slot machines are played on a video screen, their development often mirrors any other video game. The creative process and creating the assets that act as the game pieces or tiles have to go through an art department before they appear on the screen.

Slot game development for online slots involves lots of different people in different positions working together. Although all slots aren’t made equally, there are some elements that are necessary, like the art, mechanics, and software.

Slot Machine Art

Graphic artists will take the time to create graphics that’s sole intention is to excite players. The slot machine is often bright and uses multiple colors to draw the eye. It’s normal for each individual title to have a theme, so the images, reels, symbols, and messages all come together to fit this theme. For example, a space theme will use spaceships and aliens.

Sometimes, the art isn’t drawn by hand and is entirely made in a 3D program. As the process continues in both cases, the concept art eventually becomes a wireframe and then a fully-fledged design. Most slots have 4 – 5 spinning wheels, so artists must design symbols and backgrounds to accompany them.


Every game has mechanics, but many assume that a slot machine’s mechanics aren’t any more complicated than matching symbols. However, that isn’t always the case. Casino slots are becoming more and more like video games with multiple levels and sequences that activate after fulfilling specific requirements. 

During development, the mechanics are kept in mind because they need the right software and graphics to execute said mechanics correctly. For example, if you need to match 5 Jackpot symbols to activate a minigame, these symbols must flash and change to the next frame, which will house the new minigame.

Psychology plays a significant role in slot machines’ mechanics because the developers’ intention is for you to play more of it. To keep users playing, the experience can’t just be flashy but also rewarding. This can be executed by making the interface easy to use, convenient and fun. There also needs to be a pattern of wins.


To make great games, you need great software. To top that off, you also need to know a few programming languages to execute the software’s actions. Many online games with limited functionality will use HTML5 and Javascript, whereas more complicated ventures will use C++, C#, and Lua. Mobile gaming favors Objective-C, Swift, Kotlin, and Java.

Regardless of what programming language you’re using, you’ll need an engine like Unity or Unreal Engine to streamline the process. Finally, slot game developers will use Corona and Fusion for mobile and or Construct 3 and Phaser for the Web. To break this down, you’ll need a programming language, an engine, and software to start creating assets for the game.

If you’re looking for someone to create a slot game for your company, you’ll often have to hire developers from another company unless you have the talent in-house. Countless studios provide casino development services. Name stays like Konami, NetEnt, and RTG are well-loved in the industry.

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