Stack 'Em Pokie Review

Hacksaw Gaming built Stack 'Em as a follow-up to Stick 'Em, keeping the cartoonish, retro vibe. The characters Canny the Can and Mona the Mouse populate a world that feels more like a Saturday-morning cartoon than a typical pokie floor. The layout is a 5x6 grid, but it doesn't use paylines. Instead, it's a cluster-pays game: you need five or more matching symbols connected horizontally or vertically to form a winning cluster.

That's a structural departure from the standard 5x3 pokie with fixed paylines. Because the grid is larger and wins come from clusters, the math works differently. The absence of paylines means every position can contribute to multiple potential clusters, and the cascade mechanic (explained in the features section) keeps the board active after a win. If you're used to spinning a 5x3 with 20 or 30 paylines, this will feel more like a puzzle than a line-based game.

To play Stack 'Em, set your bet using the bet selector, which ranges from $0.20 to $100 per spin. The game is a 5x6 cluster-pays pokie, so wins are formed by landing five or more matching symbols connected horizontally or vertically—there are no paylines. The paytable and info panel can be accessed via the info button, and the spin button starts each round. There is no ante bet; however, a bonus buy is available at 129x your bet, which takes you directly to the free spins round. Use it if you want to skip the base game, but be mindful of the cost relative to your bankroll.

The key features are cascades, stacked symbols with reel multipliers, free spins, and two special symbols: 'X' and '?'.

Cascades work like this: after a winning cluster, the winning symbols are removed and new symbols drop in to fill the gaps. Non-winning symbols are also dropped, so the board refreshes completely. This can create chain reactions within a single spin.

Stacked winning symbols are the core mechanic. When symbols stack on a reel, they build a multiplier for that reel, up to 6x per reel. With six reels, the maximum total multiplier is 30x. For example, if you get a win on a reel with a 2x multiplier, that win is multiplied by 2. If you then get another win on the same reel, it might increase to 3x, and so on.

Free spins trigger when you land three or more scatter symbols. You start with five free spins, and during the bonus round a progressive global multiplier applies to all wins. The 'X' symbol applies the accumulated multiplier to any win it's part of. The '?' symbol adds extra spins or increases the multiplier, depending on the outcome.

There's also a bonus buy option, which costs 129x your bet to jump straight into the free spins round.

The default RTP for Stack 'Em is 96.2%. Hacksaw Gaming typically releases multiple RTP levels, and 96.20% is the default. Lower RTP versions exist but the exact figures aren't published on the sources we checked. If you encounter a version with a lower RTP, say 94%, the difference matters. At 96.2%, for every $100 wagered, the theoretical return is $96.20. At 94%, it's $94. That's a $2.20 difference per $100, which adds up over a long session.

The maximum win is 10,000x your stake. If you bet $1, that's $10,000. If you bet $5, it's $50,000. The game is high volatility, meaning wins are less frequent but larger when they come.

Before you play, check the RTP version in the game's info panel—it's the only way to know which version you're getting.

High volatility means you should expect dry spells. The bet range is $0.20 to $100 per spin. For a $50 session, a sensible bet is around $0.50 to $1, giving you 50 to 100 spins. For a $200 session, you could go up to $2 or $3 per spin, which gives you 66 to 100 spins. The idea is to survive long enough to hit a cascade chain or the bonus round.

The bonus buy costs 129x your bet. If you're betting $1, that's $129 per attempt. At $0.20, it's $25.80. That's a significant chunk of a $50 bankroll, so it's not for everyone.

Remember, no betting system changes the RTP. The house edge is built in, and the only thing you control is how long your bankroll lasts.

The demo version of Stack 'Em uses play credits but operates on the same maths and RTP version as the real-money build at the casino you open it in. Given the game's high volatility, a demo session is useful for observing how often cascades and reel multipliers build, and how the 'X' and '?' symbols behave during free spins. You can also experiment with different bet sizes across the range to see how they affect your session length. With real AUD, bets are actual money, so bankroll management becomes critical.

You can play Stack 'Em at Ripper Casino, Huff n More Puff, which offers real-money play in AUD. There's also a demo mode available, so you can try the game for free before committing real money. When you do play for real, check the RTP version in the game's info panel to make sure you're getting the default 96.2% version. If you or someone you know needs help with gambling, call Gambling Help Online on 1800 858 858.

Fire in the Hole — Both use a grid format and cascading mechanics, but Fire in the Hole has very high volatility and a 60,000x max win. Stack 'Em's reel multipliers differ from Fire in the Hole's xBomb wilds and collapsing mine.

Wanted Dead or a Wild — Both are Hacksaw Gaming titles with high volatility and bonus buys. Wanted Dead or a Wild offers a 12,500x max win and DuelReels, while Stack 'Em focuses on cluster pays and reel multipliers.

Bonanza Megaways — Both feature cascading wins and a grid layout, but Bonanza Megaways uses Megaways with up to 117,649 ways and an unlimited win multiplier in free spins. Stack 'Em's cluster pays and reel multipliers are distinct.