Space Stacks Slot

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Space Stacks Slot Review

If looking to take a break from conventional real money slots, Push Gaming has the title you've been searching for, Space Stacks. The latest slot by the developer, as expected, is quite different from anything you've seen so far, both in terms of layout and how the game functions and delivers prizes.

Based on 10 reels and 10 rows, Space Stacks is a medium volatile slot offering an RTP of 96.23%. It offers the most unconventional gameplay you've ever seen, yet is presented with the quite popular space theme. It does not offer paylines, but the payouts are given according to an unusual math model, as you'll soon see. There are no Wilds, Scatters or Free Spins, yet, by placing the right bets on the Reelbets, you can get to a max payout of 5,000x the stake! Ready to find out all about it?

Space Stacks Game Logo
RTP 96.23%
Volatility Medium
Maximum Win €500,000.00
Bonus Buy Icon Error No
Game Provider Push Gaming

Licensing Authorities and Testing Agencies

Space Stacks Setup, Paytable and Layout

When you first take a look at the Space Stacks slot, you'll instantly be quite shocked by what you're seeing. 10 reels with 10 rows appear in front of you. The first 6 reels have the numbers 2, 2, 3, 5, 10, and 50 on top of them, and the following 4 have four figures with the names Astro, Flip, Apex, and Max on them. Then, below the reels, you have these same numbers and figures and casino chips below them, of $0.01, $0.05, $0.10, $0.50, $1, $5, $10, and $100. To start playing, you would need to select the chip and match it with the reel you want to play. This means the game allows you to pick the size of the bet per reel. You should know that the reels with the number values and the Max Block are Instant Prize Reels, with the Max Block giving up to 5,000x the stake when played, but more on this later.

Once you've chosen the bets, you will see the Balance display in the left bottom corner of the screen, and in the right corner, you can see your Total Bet per spin. Above the Total Bet display, you will see the three-bar button, which takes you to the paytable, where all the rules for the game have been explained in detail by Push Gaming.

As you will see, there are no special or regular symbols, for that matter, which give payouts as they normally do in regular slots. In the Space Stacks real money slot, you will see block tiles and some space-themed symbols appearing, but with no values. These drop down from above and fill out the reels. When you fill a reel with 10 active symbols, and you've placed a bet for that respective reel, you win the respective prize.

Space Stacks Slot on Mobile Platforms

Space Stacks is a mobile-compatible slot, as are all games developed by Push Gaming. All you need to do to play it is to connect your mobile device to the internet and open any browser.

Due to its HTML5 format, the slot plays perfectly across any iOS and Android device, and you don’t need to download any slot apps to play it.

Reels 10
Rows 10
Autoplay Option
Autoplay Option Icon Error No
Release Date
Release Date 26/10/2022
Minimum Bet
Minimum Bet €0.10
Maximum Bet
Maximum Bet €100.00

Space Stacks Online Slot Base Game

Considering the Space Stacks slot does not rely on any Wilds or Scatters, you probably don’t know what to expect from it in the base game.

Well, before you press the Play button, you have the Enhancement feature which can further increase the first six Instant Prize reel values, by adding values from 2+ to 1,000+ or Multipliers of 2x to 100x.

Space Stacks Slot Bonus Features

To access the special Space Stacks Bonus Round, you'd have to have placed bets on the Astro, Flip, or Apex reels, first and foremost. And then, one of these reels has to win, meaning, to get filled with 10 symbols, so that you can trigger the corresponding feature.

The Apex feature is most similar to the base game, but with the Instant Prize reel values starting at 2, 3, 5, 7, 10, and 20. The Enhancement feature allows for possible boosters of 2x to 20x. When you fill one column, you get its prize, but when you fill a second column, its prize is multiplied by the already collected prize. This goes on for further filled columns. But, when you manage to fill 2 columns, you get 3 lives. If you land one symbol or more, the lives are rest to 3. If you don’t land any symbols, you lose lives and when you eventually lose them all, the feature ends. The feature also ends if you manage to fill all columns, in which case your total win will be multiplied by the bet displayed on the Feature Block.

When the Astro feature is activated, an Instant Prize wheel is presented on the reels, containing 32 segments with prizes of 2+ to 1,000+, a Collect segment, or Multipliers from 2x to 100x. You keep on collecting your prizes until you hit the Collect segment.

Finally, when you trigger the Flip feature, a 6x6 board appears on the screen. You need to select one of the 3 down-faced tiles to get a Rocket symbol or an Instant Prize of 1x to 1,000x. The first Rocket you reveal comes with a 2x Multiplier, while all consecutive Rockets increase the Total Win Multiplier, with possible Multipliers of 2x, 5x, 10x to 100x.

Slot Features

Multipliers Icon Yes
Stacked Symbols Icon Yes

Space Stacks Slot RTP, Maximum Payout and Volatility

Push Gaming has designed Space Stacks as a medium volatile slot with an RTP of 96.23%. The max win is capped at 5,000x the stake, just like the Max Block prize total.

This means, that should your Total Bet be $100, the max you could win playing the slot is $500,000 credits. For a medium volatile slot, that’s quite a payout, don’t you think?

Space Stacks Online Slot Verdict

Just like most slots by Push Gaming, Space Stacks is an incredibly unconventional slot to play. It does not offer the usual paylines, no Wilds or Scatters are present, and it most certainly does not play the regular way. As such, it may not be your cup of tea, especially if you’re used to playing regular slots. However, if you’re into refreshing slots, titles that offer something else, make sure you give it a try at the best slot sites. You’ll absolutely love everything it has to offer, especially the 5,000x the stake max payout potential.

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Meet Our Slot Tester

Karolis Matulis
Karolis Matulis Slot Tester

Karolis Matulis is an SEO Content Editor at with more than 5 years of experience in the online gambling industry. Karolis has written and edited dozens of slot and casino reviews and has played and tested thousands of online slot games. So if there's a new slot title coming out soon, you better know it – Karolis has already tried it.

This review is based on the writer's personal opinion is an informative comparison site that helps users find the best products and offers. We maintain a free service by receiving advertising fees from the brands we review. Ratings are based on position in the comparison table or specific formulas. We strive to keep information up-to-date, but offers are subject to change. We do not compare or include all brands and offers.


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