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We Check Out the Super High Variance Slot 300 Shields Extreme From Nextgen Gaming!

If you are a fan of high variance online slots then you are in for treat as Casumo Casino has recently added the new 300 Shields Extreme slot to their casino which is one of the most volatile and potentially rewarding slots around.

The original 300 Shields was an iconic release for slot players who like super high variance machines with the chance of winning well in excess of 1000x stake, similar to releases such as Dead or Alive II, with the main difference being the potential insane 300x Multipliers that can be applied to any wins in the bonus round that features a wild symbol on a payline!

Based on the classic 300 Shields slot machine, visual upgrades and a fresh UI have been given to this machine along with a new extreme mode and a buy pass feature (although this is a toggle option left to the casino to decide whether to switch on or off) which allows you to buy a bonus round for a premium of 60x stake!

All of the classic gameplay has been retained in this release, think of it more as a visual upgrade and polish rather than any new gameplay features apart from the “Buy Pass” feature, so if you have played the original version of this slot you’ll be well aware that the free spins bonus round is where all the action and suspence awaits.

3 or more regular scatters triggers the bonus round, where you are granted an inital 5 free spins, if you collect more scatters during the bonus the shield meter will increase, reach certian levels to raise up the multiplier value and award extra free spins too. Their is also a possiblity of re-triggering the current free spins when you land 3 or more scatters which can really help reach the final 300x multiplier checkpoint where the crazy wins are a possibility.

300 Shields Extreme Slot – Gameplay and Bonus Features

300 Shields Extreme Slot – Technical Summary
Free SpinsYes
Re-Trigger Bonus RoundYes
Special FeaturesFree Spins
RTP (Return To Player)95.30% Regular
95.66% Buy Pass

Bonus Features

Apart from the wild symbol and scatter in the base game there are no addtional special features to look out for, this slot is super dependant on triggering the bonus round frequently as this is literally where all the win potential comes from, and even more so the staggering 300x multiplier level.

The main free spins bonus round is triggered by 3 or more scatters and grants an initial 5 free spins, where the initial task is really to collect as many scatters as possible to reach the higher levels of the battle feature and thus get awarded with bigger multipliers and extra free spins.

Further into the bonus round you are loking for win that include the Warrior Wild symbol as this will then apply the multiplier to those wins.

Battle Feature

  • If you collect 2 or more SHIELDs, a second series of 5 Free Games is awarded, with all WARRIOR wins multiplied by 5
  • If you collect 6 or more SHIELDs, a third series of 5 Free Games is awarded, with all WARRIOR wins multiplied by 25
  • If you collect 12 or more SHIELDs, a fourth series of 5 Free Games is awarded, with all WARRIOR wins multiplied by 300
300 Shields Extreme Slot

Overall Opinions

If you have played the original 300 Shields slot then you should know exactly what to expect in this release as it’s basically more of the same super high variance with a slicker and updated UI and graphics.

If you haven’t played this slot before then be aware that it is super high variance, and can be even more brutal with the “buy pass” option activated, the 300x multiplier is difficult to reach and sometimes you will find you may not even reach the 5x multiplier level. In our playtests we had bonus round wins in the range of 3x stake right up to 2000x stake in a short period of time which should help give you an idea of how volatile this slot is.

There are subtle changes in the slots RTP when buy pass option is used, but I would suggest checking this option with play money beforehand to get an idea of the slots volatility/potential.

Approach with caution in terms of bet size as the base gameplay will rarely keep your balance at a decent level, you are almost totally reliant on bonus features for the bigger wins. That said if you are a fan of super high variance slots then you should have already played the original as there arent many slots which can boast such insane win potential once the 300x multiplier level has been reached!


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