Wild Stack Frenzy Slot Review

⭐ 9/10
Create by: Yggdrasil Gaming
Review by:
Posts by Michael White
Updated: November 29, 2025

Wild Stack Frenzy is a High volatile slot from Yggdrasil Gaming with an RTP 96% and up to x5000 maximum win. Play demo for free.

Wild Stack Frenzy Slot Demo

Release Date
2023-10-31
RTP
96%
Max Win
x5000
Volatility
High
Bet Range ($,€,£)
0.20 - 200
Number of Reels
5
Betways
20
Features
Bonus Buy, Multiplier Wilds, Stacked Wilds

The Wild Stack Frenzy Slot Game

Wild Stack Frenzy drops me into a crystalline cavern packed with dino skulls, fossils, and glittering gems. It looks and sounds very modern, even though the theme is prehistoric. The layout is a standard 5-reel, 3-row grid with 20 fixed paylines paying both ways, left to right and right to left. On top of that you get Avalanche wins, stacked wild crystals, and a smooth control panel under the reels.

The slot runs on desktop and mobiles without any fuss, and the interface is straightforward enough for newcomers. Bets start at £0.20 and go up to £200 per spin, so it suits both casual players and high rollers. Wild Stack Frenzy is a high volatility game with a 96% default RTP and a 5,000x stake max win, which gives the features plenty of potential when they line up.

Wild Stack Frenzy slot screenshot

Symbols and Payouts in Wild Stack Frenzy

Wild Stack Frenzy sticks to ten thematic symbols, which keeps the paytable easy to read. The low-win icons are rock carvings of card suits: green Clubs, blue Spades, purple Diamonds, and red Hearts. Five-of-a-kind of any of these pays up to 0.5x your total bet. Wins land from three or more matching symbols in a row, starting either from the leftmost reel or from the rightmost reel.

The high-paying symbols are the fossils. You have a shell, rib bones, claws, and a dinosaur jaw or skull, again needing three to five in a line. At the top end, the best fossil can pay 2.5x the stake for a full line, with the others paying 1x to 2x. On paper these payouts look modest, but they are designed to work alongside the multipliers from the stacked wilds.

Wild Crystals act as the wild symbol, standing in for all regular icons and always appearing in stacks. A purple Mushroom marked Free Spins is the scatter. Scatters do not pay cash; instead 3, 4, or 5 in view award 7, 9, or 11 free spins. In practice, the real money comes when fossil combinations run through one or more wild stacks carrying multipliers, especially during a long avalanche sequence.

Symbols and Paytable

Symbol Quantity Payout
icon 1 5 x2.5
4 x1
3 x0.5
icon 2 5 x2
4 x0.8
3 x0.4
icon 3 5 x1.5
4 x0.7
3 x0.3
icon 4 5 x1
4 x0.6
3 x0.3
icon 5 5 x0.5
4 x0.3
3 x0.2
icon 6 5 x0.5
4 x0.3
3 x0.2
icon 7 5 x0.5
4 x0.3
3 x0.2
icon 8 5 x0.5
4 x0.3
3 x0.2
icon 9 Scatter

Wild Stack Frenzy Slot Bonus Features

Avalanche wins are active on every spin in Wild Stack Frenzy. Any winning symbols explode, the remaining blocks drop down, and fresh ones fall from above. If a new win appears, the process repeats, all counted as part of the same paid spin. During these cascades, pre-positioned Wild Stacks sit above random reels, ready to drop once the symbols beneath them disappear, which keeps the screen lively.

Wild Stacks are the headline feature. In the base game each stack covers 3 to 6 positions, with the bottom wild carrying a 1x multiplier that climbs by one step per symbol, up to 6x. In free spins the stacks can stretch to 10 symbols high with multipliers up to 10x. Three to five Mushroom scatters award 7, 9, or 11 free spins, retriggerable, and there is a Bonus Buy option costing 60x the bet for 7 spins.

How to Win at Wild Stack Frenzy Slot

Wild Stack Frenzy is not a complex slot, but I still like to practise in demo mode before risking cash. I pick a stake between £0.20 and £200, then spin or set up Autoplay and let the 20 both-way paylines do their work. I keep an eye on the Wild Stacks parked above the reels during avalanches, as a single well-placed drop can turn a drab sequence into a serious payout, especially in free spins.

Wild Stack Frenzy Slot RTP & Volatility

The headline RTP for Wild Stack Frenzy is 96%, which sits in the middle of the pack. Yggdrasil also ship the game in lower settings around 94%, 90.5%, and 87%, so I always check the info panel before I start. Volatility is high, and the hit frequency sits at roughly one win every three spins. Individual line wins are often small, as a lot of the value is tied up in multipliers and avalanches.

The max win is capped at 5,000x the stake, so at the £200 ceiling you are looking at up to £1,000,000. In reality, most sessions are about riding the swings while waiting for a big combination of stacked wilds, avalanches, and maybe free spins. I tend to favour lower stakes or a cautious stake progression, as the game can go cold for stretches before those stacked wilds finally land in the right place.

Wild Stack Frenzy slot screenshot

The Final Thoughts on Wild Stack Frenzy

Wild Stack Frenzy feels like a classic Yggdrasil slot to me: a strong theme, slick visuals, and one core mechanic pushed hard. The both-way paylines and Avalanche wins work nicely alongside the towering Wild Stacks, and free spins turn up often enough, especially if you are willing to use the Bonus Buy. The high volatility and fairly modest line pays will not suit everyone, but if you enjoy multipliers and cascades, this cave is worth exploring.

Screenshots

Wild Stack Frenzy slot screenshot 1
Wild Stack Frenzy slot screenshot 2
Wild Stack Frenzy slot screenshot 3
Wild Stack Frenzy slot screenshot 4
Wild Stack Frenzy slot screenshot 5
Wild Stack Frenzy Final Ratings
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RTP (96%)








Max Win (x5000)








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FAQs About Wild Stack Frenzy

Can I play Wild Stack Frenzy free slot?

Absolutely! You can enjoy Wild Stack Frenzy for free on our website without registration. Our partner casinos of Yggdrasil Gaming also usually offer demo mode access.

Can I win real money on Wild Stack Frenzy slot?

Yes, to win real money in Wild Stack Frenzy, you'll need to create an account at a licensed casino site. You can then play for real and win up to x5000.

Can I play Wild Stack Frenzy slot on mobile phone?

Yes, Wild Stack Frenzy is fully optimized for mobile devices and runs smoothly on any devices.

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