Tempered Steel Slot Review

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74% Rated

Graphics - 68%

Gameplay - 78%

Bonuses - 62%

Value - 59%

Whizz hot?

  • Captivating theme with colourful HD visuals
  • 3x Quenching features
  • Free Spins with a truckload of Wilds
  • A massive jackpot of 10,028 the stake (more than $1 million)

Whats not so hot?

  • Volatility is bruising
  • Definitely not for small budget players

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Game information


Tempered Steel











Tempered Steel video slot is a collaborative effort between Yggdrasil Gaming and Bulletproof Games.

Smaller yet competent studios that don’t have the resources usually team up with the big boys.

We’d like to get the following out the way first. Bulletproof Games lists the slot as “Iron Forged” and not as Tempered Steel at its website, weird

That’s quite odd, well leave it at that. The slot has 5 reels, 3 rows, and 20 paylines that pay from left to right.

After a bit of digging, we see that Bulletproof Games has a few slot games in their stable.

The slot’s theme depicts a dude that won’t feel out of place in an epic fantasy adventure.

The bloke’s built like Kratos and even his beard matches that of the epic hero’s. At least, it’s not another online slot game with an ancient Egyptian theme.

The jackpot of 10,028x is superb but it also comes with a high variance flavour. To such an extent the Whizz team rates it a 10’er on our slot’s scale.

As we unpack the features, the slot offers Free Spins and a Lock and Spin feature. Once you’re ready to play the slots with real money online.

You can spin the reels from $0.20 to $100 per pop. Furthermore, the hit frequency is 24.40% translates into a payout on every 4th spin.

tempered steel slot


The RTP or payback percentage of Tempered Steel is 96%. Considering the size of the $1 million jackpot it’s top-notch for lack of a better word.

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According to the Paytable, the Tempered Steel slot has 9 pay symbols. Moreover, they’re in tune with the game’s decor which is darkish with shades of red.

Obviously, it clearly depicts the brutish blacksmith’s workshop. The low-value card suits pay up to 5x the stake for 5 matching symbols.

The high-value symbols are daggers, axes, hammers, and swords. The premium symbol is the axe.

When 5 of them appear in any position on the reels you’ll win 40x your stake.

The rest of the symbols are the blacksmith wilds and the scatters. The wilds offer payouts and sub adjacent symbols except for the scatter.

Lastly, the scatters are responsible for triggering the free spins feature.

tempered steel slot

Tempered Steel Slot Bonus Rounds

Quenching Feature

The Quenching feature triggers on any random spin in the base game.

There are three of them namely the Lock and Spin, Bonus Frenzy, and Forge Your Weapon.

The Lock and Spin feature showers the reels with stacks of Wilds. They stick to the reels and award a respin.

The feature ends when the reels are full of wilds, or no new wilds pitch.

Bonus Frenzy

Now, the Bonus Frenzy drops an extra scatter onto the reel set increasing your odds of triggering the Free Spins.

The Forge Your Weapon

The Forge Your Weapon bonus round doesn’t only reveal a weapon. Consequently, it adds a bunch of them to the reels which heighten gameplay!

Free Spins

To get in on the action in the Free Spins feature, you need 3 or more scatters.

There’s a bit of graphical wizardry going on in the free spins as well. Five forges light up which become active on any free spin.

The forges add anything from 3, 4, or 5 wilds to the reels. Keep in mind, that the forges you’ll play with depending on the number of triggering scatters.

Moreover, the wilds are in tune with the forges and they move with each free spin. The free spin feature ends when no more wilds remain on the grid.

There is a possibility that the forges can light up again once the free spins feature ends.

Bonus Buy Option

If you don’t want to slug out the free spins feature; you can buy them outright using the feature buy option.

However, the price to unlock the free spins comes with a price tag of 100x the stake.

tempered steel slot

Tips & Strategy Tempered Steel

Before you commit real money, play the slots online with free credits.

Pick any of our online casinos that accept real cash bets and sign up. They also offer you a welcome bonus once you deposit.

Make sure that you understand the bonus terms



We tip our slot hats to Bulletproof Games with their release of Tempered Steel. For the most part, smallish studios create mediocre slots; luckily it’s not the case here.

What further impresses us is the jackpot of more than 10,000x the stake.

We expected a top win of around 2,000x because that’s the jackpot size smaller vendors usually roll with.

The special features in the slot ebb and flow with the volatility and the payouts are excellent.

You’ll have to grind out the features and triggering the bonus is a slog. Luckily, there’s plenty of help in the base game thanks to the Quenching feature.

It’s worthwhile though because those forges churn out plenty of wilds for spectacular wins.

And, you can retrigger the free spin feature for extra free spins.

We won’t describe Tempered Steel as a never-ending fountain of fun because it isn’t. In fact, it’s a gritty slot that’s violent and infectious.

Sakura Fortune 2 is another superb slot with a 19,664x jackpot and 3x free spins features with Stacked Wilds.

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