Game description

Santas Stack Slot (Relax Gaming)

Santas Stack Slot (Relax Gaming)This slot couldn’t have come at a better time! We are approaching the winter holidays, and as usual, many developers will come up with lots of Christmas-themed slot games.

Santa’s Stack is one such game, and the developer behind this holiday-themed title is Relax Gaming.

I had an opportunity to explore this rather unusual game, and I will share my findings below:

Game Set-Up

Santa’s Stack has a very large game area since the slot relies on 8 reels with each holding up to 8 symbols. There are no regular lines here, and neither are there any ways to win. All that there is to use is a Cluster Pays system.

I love the slot’s potential, not to forget the great features like Cluster Pays, Free spins bonus, Buy Feature, Cascading Reels, Extra Wilds, Increasing Multiplier, Mystery Symbols, Random Wilds, and Respins

Betting and Prizes

This is my favourite section of the game, because, with the right features, you can win some good money.

To place a real money bet on Santas Stack, I needed to use between $0.10 and $50 per spin. As for the potential, and possible wins, Relax Gaming has been generous enough and you can be lucky to walk away with wins of up to 20,000x the stake or $1,000,000 in cash, from a single spin.

This huge prize is accompanied by very high volatility, but the developer has been considerate enough and they have offered an RTP of 96.27%. This is a good level for handling such high variance.

Santa’s Stack Slot Features

To trigger wins, I was required to land at least 5 symbols of the same type on the reels, and these must land next to each other. This way, it is possible to form Clusters of up to 60 symbols, which is all that you need to hit the top jackpot of 10,000x the stake.

Once you form a cluster, what follows is the cascading reels, and as is the norm, they come in to remove the winning symbols and replace them with new ones. New clusters will deliver more wins, and the process will continue until there are no more clusters left.

The wild will also bring along some much-needed help, and in addition to serving as a substitute for the regular icons, the wild also assists to trigger the respin feature.

The cluster that will result from the wild’s help will be transformed into some mystery positions.

An even better help will come from the free spins. With at least 3 scatters landing on the reels, I could enjoy 5+ free spins. It is also easy to retrigger these since the game adds some wilds to the reels with each free spin.

If an extra scatter lands, you will receive additional free spins (1 per new scatter), and an increased multiplier of 1x when this happens.

Theme and Design

The theme is rather obvious, and Santas Stack is all about the holidays, and Relax Gaming has gone with a Santa-inspired design. With 8-bit style graphics, we can conclude that the design is more of a vintage arcade game.

Behind the reels are several fascinating houses that are decorated with Christmas lights. The houses have snow everywhere, a design that is quite captivating for holiday lovers.

For the symbols, Relax Gaming uses things like Christmas lights (blue, green, red), images of Elf, Rudolph, Mrs Santa, and Santa (serves as the top symbol). Wilds (as W logo) and Christmas Tree (scatters) form part of the features symbols.


Overall, Santa’s Stack is a striking slot machine that brings back all the Christmas memories. With its big rewards, an interesting mix of good features, and retro graphics, this is the perfect gift for any Christmas.

UPDATED ON: by Shawna Dudley