Space Stacks
Space Stacks

Space Stacks

Venture beyond earth into the galaxy of Space Stacks, an out-of-this-world video slot with instant prizes, enhancer multipliers and the brand-new betting feature, Reelbets.

  • RTP: 96.23%
  • VOLATILITY: high
  • FREE SPINS: no

Where you can play Push Gaming Slots

Mr. Rex Casino
4 /5
4.0 rating
Mr. Rex Casino
4.0 rating
4 /5


€200 + 100 Spins

18+. New players only. Min deposit: ‎€10. 100 spins require 3 deposits: min 2nd and 3rd deposit ‎€20. Spins and bonus wagering requirement: 35x, spins expire after 24 hours. Full Terms Apply
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Mr. Rex Casino

100% Bonus up to €200
+ 100 Spins


€200 + 100 Spins

What does John have to say?

If you’ve been craving an online slot with original, never-before-seen features, Space Stacks is just the thing for you!
  • Unique Reelbets concept
  • 3 different bonus games
  • Instant cash prizes of up to 1,000
  • Multiplier enhancers of up to 100x
  • 5,000x max winning potential
  • 5-level customisable RTP Setup
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Space Stacks Review

Once more, Push Gaming is breaking new ground with the launch of Reelbets, a hot-of-the-press feature unique to Space Stacks. A new space-themed addition to their expanding games library and playable on a 10×10 reelscape with zero paylines, the slot is unlike anything else you’ve played before. To start with, you’ll split your bets between different bonus features and then, to get the base round going, you’ll stack colourful blocks instead of matching symbols. Unique but easy to master, it’s a video slot you won’t want to miss from this trendsetting game developer. If you, like us, feel intrigued by this unconventional title, get ready for the liftoff with our handy slot review below.

SLOT FEATURESInstant Prize Blocks, Max Block, Bonus Games, Fortune’s Wheel, Pick Bonus, Win Multipliers, Reelbets
RELEASE DATE26th October 2022
BET LEVELS0.10 – 100

Space Stacks Bonus Features

As we said, Space Stacks is not your regular online slot with free spins and other familiar bonus features. Powered by the developer’s newfound concept, Reelbets, the slot has 6 Instant Prize Blocks and 1 Max Block instead of symbols plus 3 different bonus games. The base game starts with colourful blocks stacking beneath the said master features, and when you fill one or more columns right to the top, that’s when the wins start taking shape. However, it’s important to remember that the events will only trigger if you place a bet on the corresponding block(s) using the nifty betting function.


Thanks to the brand-new Reelbets feature, you can split your base bet and wager on any of the 6 Instant Prize Blocks, 3 bonus games or the Max Block. The latter holds an instant prize worth up to 5,000x your stake. You can wager evenly or bet as much or as little on each feature. If the stack(s) you bet on reaches the top of the grid, you’ll win an instant prize or unlock the corresponding bonus round.

Enhancement Feature

Each instant cash block starts with a multiplier of 2x up to 50x, but if the Enhancement feature is kind to you, you’ll see their values increase handsomely. At the start of each base game and after you’ve placed your bets, there’s a possibility that each of the 6 instant cash blocks will receive a random multiplier or an additional value. The multipliers range between 2x – 100x and the values vary between +2 up to +1,000.

Bonus Games

Betting on Astro, Flip and Apex bonus games triggers the corresponding features:

  • Astro – during this bonus game you’ll spin a 32-segment fortune’s wheel containing multipliers, additional cash or collect symbols. The wheel stops spinning once you land the C (collect) symbol.
  • Flip – here, similar to a pick bonus game, you’ll be flipping tiles to find instant cash of up to 1,000. The tiles will shuffle, and you’ll have 3 picks to find your prizes. If you can locate a rocket icon, it will unlock win multipliers of 2x, 5x, 10x and 100x, and will reset your picks back to 3.
  • Apex – similar to the base game, you’ll be stacking six instant prize reels with the enhancement feature active. As soon as you complete two stacks, you’ll have 3 lives activated to collect another instant prize, at which point your lives will reset back to 3 again. The starting instant prize block values range between 2 – 100, and the enhancement multipliers vary from 2x up to 20x.

Space Stacks Jackpot

As a debut slot in the Reelbets series, Space Stacks doesn’t have a dedicated jackpot, but the winning potential on offer is a solid 5,000x your stake.

RTP and Volatility

More than the high volatility level, beware of the game’s configurable 5-mode RTP setup. The default rate arrives at 96.23%, but it can be much lower at some online casinos. Also, before splitting your bets, check out the varying RTP levels for each bonus feature listed in the slot’s paytable.

Where to Play Space Stacks

When released, you’ll find Space Stacks at most Push Gaming online casinos including our personal favourites, MrQ and LeoVegas.

Space Stacks on Mobile

Explore the wonders of Space Stacks using your mobile phone or tablet. The slot sports a complete HTML5 setup making it easy for you to play on the go from any location.

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