Expansion Slot

Expansion Slot Review

Many space-themed slots have been released over the years, including some really unique titles, such as the Mystery Mission to the Moon slot. Now with the new Expansion slot, you can enjoy some excellent features, including Mystery Stacked symbols, dynamic Free Spins and even unique Directional Wilds, so read on to learn all about these things.

Table of Contents:

1. About Expansion Slot 
2. Design, Symbols, and Graphics
3. RTP, Variance, and Payouts
4. Gameplay and Features
5. Our Verdict

About Expansion Slot

The Expansion slot takes place across a standard grid that comprises 3 rows and 5 reels, as well as 30 active paylines. Regarding the paylines, wins can be formed by landing at least 3 matching symbols across one of them, starting from the leftmost reel. 

One of my favourite things about the Expansion slot is the betting range, which is suitable for any player. The options span between £0.30 and £300 per spin.

Design, Symbols and Graphics

The graphical presentation of the Expansion slot is phenomenal. The base game takes place at twilight in the countryside. The warm and colourful background is pretty, and you’ll find your trusty telescope next to the reels. 

There is a significant change of scenery when Free Spins are triggered, as UFOs will stream out of the night sky, and you’ll be able to see many stars. Overall, the game offers superb visuals and excellent graphics.

When it comes to symbols, the regular ones are divided into low-paying and high-paying ones. The low-paying symbols are the 10-A royals, while the higher-paying symbols are more theme-related. They are presented by 4 planets and 1 yellow star. These symbols pay between 1.33x to 3.33x the stake for a full line.

Moving on to the bonus symbols, you’ll find scatters represented by a Red Planet, and landing 3 or more will trigger the Free Spins feature. There are also Mystery symbols and wilds. The latter can also turn other regular symbols into wilds, but more about that later.

RTP, Variance, and Payouts for Expansion Slot

The Expansion RTP is relatively average, at 96.08%, and is paired with a medium volatility model. As for the maximum payout, it may potentially reach up to 2,171x the stake.

You can learn more about these terms in our detailed Variance, Volatility, and RTP guide!

Gameplay and Features on Expansion Slot

In this section, we will take a closer look into the bonus features you may trigger in the Expansion slot and how they work.

Mystery Stacked Symbols

Each reel has space for Stacked Mystery symbols to land on, and they will reveal a random pay symbol. Should all the stacks simultaneously reveal their mystery symbol, you may see some higher-than-usual winnings.

Free Spins Feature

Landing 3, 4, or 5 scatters on the same spin will award you 8, 12, or 15 free spins, respectively. When wilds land, they will fire in two directions rather than one, like in the base game. Moreover, each spin will have a random multiplier of 2x, 3x, 4x, 5x, 8x, or 10x applied if any payouts are made. These multipliers change with every spin, and you may retrigger the feature by landing an additional 3 scatters.

Other Betsoft Slots

Betsoft can be considered a staple in the iGaming industry. Its slots are known for having top-notch graphical presentations and simple and easy-to-understand gameplay. We have tested and reviewed many of them, so you can check out the Golden Dragon Inferno slot, the Captain’s Quest: Treasure Island slot, and the Wilds Of Fortune slot.

Our Verdict

Overall, the Expansion slot can provide a great gaming experience. The fantastic graphical presentation and the interesting Directional Wilds make the game a great choice. The RTP and medium volatility go great together, and a great betting range is also included. Moreover, the game includes some excellent bonus features, so I loved playing it.

Discover the Expansion slot by claiming a welcome offer right from this page and play at top-rated online casinos.