Chilli Pepe Hot Stacks Slot Review

Based on our expert’s review. Reviewed by
Microgaming Slots
Review by
Martin Backhouse
Updated: 28/02/2023
Review by
Martin Backhouse
Updated: 28/02/2023

Welcome to the Chilli Pepe Hot Stacks slot! Powered by Just For The Win and Microgaming, you can sync up to 5 smoking hot reels in the base game and get thrilling combos for blazing wins that all lead towards max wins of 10,000 x your total stake. There are 2 types of Free Spins features to enjoy here, each with different variance levels and increasing win multipliers. If you manage to land full stacked chillies, you can net cash prizes up to 250x too. Discover how this game compares to others on the market below in our unbiased Chilli Pepe Hot Stacks review.

Max Win
10,000 x bet
T&Cs Apply

18+ new players only. Minimum deposit: £20. Maximum £100 bonus. Max bet with an active bonus: £2. Wagering requirement 100% match bonus: 30 times sum of deposit + bonus. Max redeemable from welcome bonus: £500. 100 Free Spins are given out 20 per day on Book of Dead for 5 days in a row, log in each day is required. Max Free Spins winnings: £100. Winnings from Free Spins are credited as bonus money with a wagering requirement of 45 times. Free Spins expire after 3 days. Some games may not be played with a bonus. Games may contribute differently when wagering a bonus. Play Responsibly! #ad

Type of Slot
Video Slot
Stakes Range
20p to £25
Bonus Features
Yes (5)
Free Spins/Multiplier
Max Win
10,000 x

Chilli Pepe Hot Stacks RTP, Details & Wager Limits

Reels/Paylines: 5 reels + 40 paylines

Stakes Range: 20p to £25 per spin

Max Win:10,000 x stake per spin

RTP: 96.1%

The Chilli Pepe Hot Stacks slot is played on 5 reels, 4 rows and has 40 fixed paylines. Wins are formed by matching 3 or more symbols on adjacent reels from left to right, starting from the leftmost reel.

Spin away from as low as 20p and as high as £25 per bet. Hit the coins icon next to the reels to adjust your total stake, Autospins and turbo spins are also options if you’re not a UK player.

The Chilli Pepe Hot Stacks RTP is 96.1%, which is slightly above the industry average for UK online slots of this type. But it’s important to note that there are different RTP versions of this game, so a casino might choose to list one with a lower RTP. Just make sure you check that before playing.

The maximum win is 10,000 x your total stake. It doesn’t look like this is possible in the base game, so one of the Free Spins features will be your best chance of landing the top prize. We explain how the bonus features work in full a bit further down in our Chilli Pepe Hot Stacks review.

Theme – feelin’ hot, hot, hot!

Theme: Mexican

High Value Symbol: Red Chillis

Compatibility: Mobile, Tablet, Desktop


The theme in the Chilli Pepe Hot Stacks slot game is very Mexican, with a typical soundtrack and reels filled with chill peppers. When you land a winner, the Mexican Banda music comes alive and is quite enjoyable compared to a lot of other slots that don’t care too much for good audio.

The reels are set in front of a flaming hot chill background, and the bold colours really do add to the overall appeal. Once the Free Spins feature lands, the audio speeds up and the background goes from purple to green. Although the visuals are fairly basic, when you add in the animations and the audio, it’s a great mix.

On the reels, the red, green, and orange chilli peppers are the higher-paying symbols alongside the lower-paying card suits – hearts, clubs, spades and diamonds. The red chilli pepper symbol pays the most, awarding  0.5, 1 or 5 x your stake for 3, 4 or 5 in combination.

The game’s Wild is a big W, which substitutes for all standard symbols and pays up to 5x too. Here’s a list of the symbols in the game and their payout information:

Symbol Payouts/Info
chilli-pepe-hot-stacks-slot-club-symbolClub 3, 4 or 5 = 0.1, 0.2 or 0.5 x stake
chilli-pepe-hot-stacks-slot-diamond-symbolDiamond 3, 4 or 5 = 0.1, 0.2 or 0.5 x stake
chilli-pepe-hot-stacks-slot-spade-symbolSpade 3, 4 or 5 = 0.1, 0.2 or 0.5 x stake
chilli-pepe-hot-stacks-slot-heart-symbolHeart 3, 4 or 5 = 0.1, 0.2 or 0.5 x stake
chilli-pepe-hot-stacks-slot-green-chilli-symbolGreen Chilli 3, 4 or 5 = 0.3, 0.7 or 1.5 x stake
chilli-pepe-hot-stacks-slot-orange-chilli-symbolOrange Chilli 3, 4 or 5 = 0.4, 0.8 or 2 x stake
chilli-pepe-hot-stacks-slot-red-chilli-symbolRed Chilli 3, 4 or 5 = 0.5, 1 or 4 x stake
chilli-pepe-hot-stacks-slot-wild-symbolWild Substitutes for all standard symbols + pays up to 4x
chilli-pepe-hot-stacks-slot-free-spins-symbolFree Spins 3+ triggers 1 of 2 Free Spins features

Chilli Pepe Hot Stacks Mobile


As with all Microgaming slot games, Chilli Pepe Hot Stacks has been produced using the very latest HTML5 technology, so it looks great on all devices, including mobiles, tablets, laptops, and PCs. I enjoy playing games with this reel size on smaller screens.

Chilli Pepe Hot Stacks Bonus Features

There are 5 main bonus features to enjoy in the Chilli Pepe Hot Stacks slot game. From Chilli Stacks and Hot Reels to 2 different Free Spins features, there’s a lot going on. Let’s run you through everything, starting with the Chilli Stacks.

Chilli Stacks

A Chilli Stacks win is triggered when you manage to land 2 or more of any fully stacked Chilli symbols on the reels. These types of wins can happen in both the base game and the Free Spins feature. Here’s what you can win depending on how many Chilli Stacks you land on the reels:

  • 5 = 250 x prize
  • 4 = 25 x prize
  • 3 = 5 x prize
  • 2 = 2x prize

Chilli Stacks wins in the Free Spins feature will be multiplied with a multiplier

Hot Reels Feature

This bonus feature is triggered at random in the base game or the Free Spins feature. Once active, 2 or more reels will become synchronised at random.

Free Spins Feature


Land 3, 4 or 5 Free Spins symbols anywhere on the reels in the base game of the Chilli Pepe Hot Stacks slot to trigger this bonus feature. Here’s how many free spins you could get:

Scatters Free Spins
3 10
4 15
5 20

Once activated, you then get to choose 1 of 2 modes – Spicy Free Spins or Extra Hot Free Spins. Here’s the info on both:

Spicy Free Spins All Chilli Stacks wins will be multiplied by an overall progressive multiplier, which begins at 1x. The multiplier will be increased by the number of full Chilli Stacks on the reels once all other wins have been paid out.
Extra Hot Free Spins All reels have a unique reel multiplier connected to them, which starts at 1x. Any Chilli Stacks win will be multiplied by the reels multiplier connected to tall reels with fully stacked Chilli symbols. When all wins have been paid, all reels with full Chilli Stacks will have their reel multiplier increased by 1.

Buy Free Spins Feature

Non-UK players can buy any 1 of the 2 Free Spins features for the following cost:

Cost Award
50 x bet 10 free spins
85 x bet 15 free spins
150 x bet 20 free spins

Chilli Pepe Hot Stacks Review Summary – better than expected

Theme & Symbols

Sounds & Music

Bonus Features

RTP (96.1%)

Max Win (10,000 x)


I’ll be honest. When I loaded the Chillu Pepe Hot Stacks slot initially, I was expecting a really average game with maybe 1 or 2 bonus features to keep things ticking along. I was pleasantly surprised when there were bonus features to enjoy in the base game as well as 2 different Free Spins features.

I really enjoyed the soundtrack here, which is not something you can say about a lot of games, especially those about chilli peppers. Take Red Tiger’s Hot Hot Chilli Pot slot for example – very basic in comparison.

Overall, Just For The Win has put together a solid slot. The 10,000 x max wins might feel out of reach, but those multipliers start to add up once things get going.

A couple of chilli-related alternatives that pack more of a punch include Extra Chilli Megaways (Big Time Gaming) and Chilli Picante Megaways (Blueprint Gaming). Both come with some great bonus features and max wins of 20,000 x and 50,000 x your stake respectively.

  • 10,000 x bet max wins
  • 2 Free Spins features
  • Increasing win multilpier
  • Tough to land big wins
  • High volatility

Chilli Pepe Hot Stacks FAQs

What is the Chilli Pepe Hot Stacks RTP?

The Chilli Pepe Hot Stacks RTP is 96.1%. This is slightly above the average figure for an online slot of this type. But please note that this game is in the high range when it comes to volatility.

What is the Chilli Pepe Hot Stacks max win?

The maximum win is 10,000 x your total stake. This isn’t too bad compared to a lot of similar slots on the market. Although very rare to land, arguably your best chance of the maximum win will come in the Free Spins feature.

Are there any Chilli Pepe Hot Stacks free spins?

Yes. Land 3, 4 or 5 Free Spins symbols in the base game to trigger 1 of 2 bonus features involving free spins – Spicy Free Spins or Extra Hot Free Spins. Both are slightly different from the other, and we explain how they work in our review.

Is there a Chilli Pepe Hot Stacks slot demo?

Yes, you can play the Chilli Pepe Hot Stacks demo right here at Our free version of the game is available on mobile, desktop and tablet devices. It’s a great chance to test the game out before deciding whether to use your own funds or not.

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