Holy Hand Grenade Slot (Print Studios)

The Holy Hand Grenade slot is played on 5 reels, 3 rows and 26 paylines. Winning combos take place when 3 or more matching symbols appear from left to right, beginning from the leftmost reel with no gaps.

Bets for this game start at 10p and go up to £60. You can adjust your bet amount using the left and right arrow buttons. Non-UK players can utilise the Autoplay function which goes up to 1,000 spins and the Turbo mode function.

The RTP rate is 96.45%, which is well above the online average of 96%. 

You’ll find a volatility rating of 'high' as it has a 4.5 out of 5 score. The base game hit frequency rate is 31.4% which means that on average, a win occurs 1 in 3.18 spins.

The maximum win is 20,000 x the bet, which means the maximum win probability is 1 in 58 million spins.

Jenny Mason

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The world of the Holy Hand Grenade slot hurls you back a thousand years into Medieval Europe, where chaos and divine intervention go hand in hand. In this quirky realm, the local priest has an unusual interpretation of God's will—finding miracles in the art of blowing things up!

The stunning visuals set the scene in an old stone church, with a heavenly light streaming down from above during gameplay. When the Free Spins round is triggered, you literally explode into action in a fiery blaze. The entire church erupts in flames, and is filled with random goats.

This journey into the Dark Ages is accompanied by a serene medieval soundtrack, punctuated by dramatic blasts on the reels. As the action unfolds, a choir sings religious hymns, with plenty of hallelujahs to heighten the eccentric setting.

On the reels, you'll encounter a host of comedic characters, each more peculiar than the last. The highest-paying symbol is the Bishop, who looks slightly deranged. Here are all of the symbols:

• Diamond: 3, 4, 5 or 6 = 0.2, 0.6, 1 or 2 x bet
• Heart: 3, 4, 5 or 6 = 0.4, 0.8, 1.6 or 3 x bet
• Club: 3, 4, 5 or 6 = 0.4, 1, 2 or 4 x bet
• Bag: 3, 4, 5 or 6 = 0.7, 2, 4 or 8 x bet
• Candles: 3, 4, 5 or 6 = 0.7, 3, 5 or 10 x bet
• Woman: 3, 4, 5 or 6 = 1, 5, 7 or 15 x bet
• Man: 3, 4, 5 or 6 = 1.5, 7, 10 or 20 x bet
• Bishop: 3, 4, 5 or 6 = 2, 10, 20 or 50 x bet
• Grenade: Triggers Holy Hand Grenade feature
• Goat Scatter: 3+ triggers Free Spins feature
  
  

Holy Hand Grenade Mobile

The Holy Hand Grenade mobile slot uses the latest HTML5 technology, which means that you can be assured of an enjoyable mobile gaming experience whether you're using Android or iOS. The slot also works well on tablets and desktops.

When playing the Holy Hand Grenade slot, there are 5 bonus options available: SuperSpinners, Holy Hand Grenade, Free Spins, Bonus Buy and Scatter Boost, which you can read about below:

Holy Hand Grenade 

Every time the Holy Hand Grenade symbol lands which you can see below depicted by an orb, it explodes after a winning combo and turn a random number of symbols around it into a single random symbol. Any affected position will be re-evaluated for potential wins.

SuperSpinners 

SuperSpinners is a trademarked feature of Print Studios, and it is featured in many of its games. They are the little gem-like stones you can see in between each reel with a number in them. If a winning line goes through a SuperSpinner (meaning that the SuperSpinner is to the left of the leftmost symbol in the winning combo) with a number on it, the number will multiply the line win. Multiple SuperSpinners applying to the same winline will multiply the win in succession. The maximum amount of multipliers is 40x in total.

Free Spins 

Landing 3, 4 or 5 scatters awards 7, 9 or 11 free spins respectively. During this feature, the grid expands to 5 rows 6 reels and 52 winlines. When a holy land grenade symbol lands during this feature, it triggers the Holy Hand Grenade feature and marks the position it landed on with a frame for the rest of the feature. 

You will be awarded 2 extra spins for each holy hand grenade symbol that lands during free spins. And if a holy hand grenade lands inside a frame, it will trigger the Holy Hang Grenade symbols with a larger explosion.

Bonus Buy

If you’re playing from outside of the UK, you can buy into the Free Spins feature at a cost of 95 x the bet.

Scatter Boost 

With the Scatter Boost, for a cost of 50% more per spin, you are guaranteed that more goat scatters will land on the reels. Also, the RTP increases by 96.64% while this feature is activated. The Free Spins feature will trigger every 113 spins as opposed to 287 without the Scatter Boost element.

Holy Hand Grenade Slot

Rating: 4.5/5

This immersive medieval-themed slot offers 20,000 x bet max wins and 96.45% RTP. Enjoy SuperSpinners, which multiply wins, Holy Hand Grenades which explode adjacent symbols and transform them, plus a superb Free Spins feature.

Jenny Mason

The game’s name immediately caught my eye as I was going through my list of slot games to review this week—Holy Hand Grenade slot. My first thought was, "What on earth could this be about?" But knowing it came from Print Gaming, I had high expectations—and I wasn’t disappointed. 

And yeay, a medieval theme! There wasn’t a fruit or sweet symbol in sight, which was a refreshing change. The visuals were simply stunning, creating a deeply immersive experience. Combined with the medieval soundtrack and religious chants, it really set the scene.

The Free Spins feature worked well when combined with the holy hand grenade symbols, leading to potential wins and extra spins. The SuperSpinners feature always fares well when reviewing a Print Studios slot. It’s an excellent feature and can add some decent multipliers which go up to 40x.

Since their inception in 2020, Print Studios has continued to shine as one of the most creative forces in the online slots world. They’ve mastered the art of creating visually beautiful and innovative games. Holy Hand Grenade joins the ranks of other Print Studios masterpieces like Tarasque, which is also set in medieval Europe. Other classics include Royal Potato, Royal Potato 2 and Reapers.

With 20,000 x bet max wins and a well-above-average RTP of 96.45%, there’s little to criticise about this game. In fact, I can’t think of a single flaw. For me, this game easily earns a 4.5/5 rating.

In August 2025, Print Studios released a sequel in Holy Hand Grenade 2 Dream Drop: with 3 types of Holy Hand Grenades in the free spins, there is also the chance to win 5 progressive jackpots and 3 daily jackpots. It comes with 30,000 x bet max wins and a Mega Jackpot worth up to €2 million. 

The Holy Hand Grenade slot review was written by our slot game experts on the OLBG Expert team. Beginning with Jenny Mason our prime slot reviewer who has worked for 17+ years in iGaming, working for top UK brands. Jenny is an expert in slots and bingo. It was then verified by Chris Taylor, who has written over 10,000 slot game reviews in an iGaming career spanning over 2 decades.   

Chris Taylor

- Your Slots Guide 👍

I’ve been working in the online gambling industry for over 20 years and seen it all! I’ve reviewed more than 10,000 slot games along the way. I’ve worked with casino operators, software providers, and affiliates.