300 Shields Extreme Slot Review

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300 shields extreme slot by nextgen gaming

Overall impression

Graphics - 94%
Gameplay - 68%
Bonuses - 73%
Value - 38%
Game Information
Name:300 Shields Extreme
Game Type:Video slot
Progressive: No
Whats hot: Whats not so hot:
The theme celebrates the 300 SpartansNot conducive to small bankrolls
Takes volatility to the next level (High)
17,770 stake to be won on a single free spin
Multipliers increase to 300x in the Free Spins
High rollers will love it

Where to play?

300 Shields Extreme by NextGen Gaming is the sequel to the very popular 2014 high variance slots release 300 Shields. It was so successful that it set the online gaming world on fire, we have good reason to believe that its newest installment will follow suit.

With 25 paylines, 5 reels, a RTP of 95.299%, a potential win of 17,770x your stake on a single spin and a free spins feature where free spin wins are multiplied by 300x, the stage is set for one heck of a gaming experience. Make sense to be honest since the slots celebrates the brave ”300 Spartan” warriors who sacrificed their lives at the Battle of Thermopylae against the Persians (Xerxes).

The visuals are bright and colourful, the developer notched up game play with a ”Buy Pass” option as well as a few more tweaks to its mathematical model. (https://en.wikipedia.org/wiki/Battle_of_Thermopylae)

Players can spin the reels from 25 pence up to ‎£12.50 per spin on mobile phones. Symbols across the reels are cards from 9 to Ace (low value) while the premium ones are archers, arrows, triremes, swords, Spartan warriors and the wild.

The most valuable symbol is the shield scatter when 5 of them pitch on the reels at the maximum bet per spin you’ll pocket 100x your stake. The wild (warrior) and scatter form an important duo during the free spins more on this in a bit.

300 shields extreme slot by nextgen gaming


Bonus Modes


The warrior is the wild symbol it completes winning combinations by substituting adjacent symbols except the scatter. Unfortunately NextGen Gaming added no special features to the base game the main ingredient is the Free Spins feature.

300 Shields Extreme Free Spins

The free spins bonus can be played in two ways: You can either trigger it by waiting for 3 or more scatters to pitch or you can dive right in by activating the Buy Pass feature at a cost of 60x your stake. We’re sort of in two minds about the latter option because it’s risky to boot, then again given the game’s ultra-volatility and the payouts on offer (more than 17,000x your stake) we believe it’s a fair deal. However, caution is still advised.

If you decide to trigger the Free Spins the conventional way you need 3 or more scatters that awards 5 free spins with Warrior wilds that doubles all wins. Should another 3 scatters pitch the free spins will be re-triggered giving you an extra 5 free spins.

Battle Feature

To the left of your screen you’ll see the ‘Shield Count Meter’ which increases when a scatter shield appears and of course take not of those impressive multipliers:

For every 2 shields collected you’ll get 5 free spins where Warrior Wild wins are multiplied by 5.
For every 6 or more shields collected there’s a third series of 5 free spins awarded where Warrior Wild wins are multiplied by 25.
Should you be lucky enough to collect 12 or more shields there’s a fourth series of 5 free spins where every single Warrior Wild win is multiplied by 300.



Based on what we’ve seen 300 Shields Extreme has all the ingredients to be another instant hit with casino patrons. If it comes down to the nuts and bolts there’s little difference between the two but 300 Shields boasts a ‘Buy Pass’ feature and the graphics are sharper.

The Buy Pass feature is ideal for high rollers albeit at a cost of 60x. Is it a trick or treat? More like a treat we’d say. We’re not going to sugarcoat the game’s volatility it’s extreme, players who succeed in reaching the top tier can brace themselves for a Huge Win especially when that 300x multiplier pops up and says hi.



300 Shields Extreme  slots FAQ

How many in-play bonus rounds does the slots have?

It has two. A Free Spins round that can be initiated by 3 or more scatters or you can spend 60x your stake by utilizing the ‘Buy Pass’ feature.

The second bonus mode is the Battle feature where you collect shield scatters with impressive multipliers ranging from 5x, 25x, to 300x. The biggest wins occur here you can win as much as 17,770x your stake, on condition you win 10 free spins where the multiplier is 300x!

Are base game wins good?

We haven’t played the slot machine yet players who played it said wins are good giving you enough cash in pocket to trigger the free spins the traditional way.

Where can I play 300 Shields Extreme?

The game can be played at any online casino that runs on the NextGen Gaming platform. We’re impressed by Rolla Casino, here’s why. On your very first deposit you score a bonus of 100% up to $/€£500 with decent bonus terms.

Once you’re a regular depositor at the casino you can participate in daily promotions where you’ll receive added incentives such as comps, free spins, special bonuses, rebate on losses and loads of other goodies. (https://casinowhizz.com/uk-online-casinos/rolla-casino/)

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