Volts And Bolts (WMS) Online Slot Review

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Volts And Bolts – how to ruin the legacy of an iconic game provider

  • Robot Bonus Feature & High Voltage Spins

  • 5000x Grand Jackpot

Volts And Bolts main game

Volts And Bolts Introduction

WMS was founded way back in 1943 by Harry Williams who started out producing electro-mechanical games and pinball machines long before getting involved in the land based casino market and later the iGaming industry. WMS has developed a long list of iconic online slots still popular today, such as Montezuma, Raging Rhino, Zeus, Ruby Slippers, Bruce Lee, Monopoly and Amazon Queen to name a few. All was good until the company reorganized and was fully merged into Scientific Games in 2016. R.I.P. WMS.

Volts And Bolts is a slot game which features a Free Spins Bonus in addition to a Robot Bonus Feature with High Voltage Spins. The game has a setup of 5 reels, 3 rows and 50 paylines, playable from €0.50 to €50. Volts And Bolts has a cartoonish style theme and centers around a mad character called Dr Volt, with the “story” taking place in his laboratory. If you’re an Generation X kid you might get some flashbacks from old adventure games such as Day of the Tentacle and Sam & Max

Volts And Bolts Symbols


Symbols include A, K, Q and J playing cards, together with premium symbols in the form of notebooks, wrenches, volt meters, brains and the Volts and Bolts symbol. The latter is the most rewarding and yields a 5x win for 5 on a payline. The wild is represented by a battery symbol, while the Mad Scientist is the scatter and the Robot being the bonus symbol. Wilds come stacked 3 symbols high on all reels except the first making it impossible to land a full screen of wilds. The max win in the main game is a depressing 200x.

Robot Bonus Feature & High Voltage Spins

Robot bonus feature in action with High Voltage Spins

Landing 6 or more Robot symbols rewards 5 Robot Bonus Spins. The Robot Symbols that triggered the feature (and any other Robot Symbols landing on the reels during the free spins) will lock and be held in place for as long as the feature lasts. After each spin, adjacent Robot Symbols will transform into Robot Shapes.

1, 2, and 3 Robot Symbols connected adjacently will award 1x, 3x, and 5x bet respectively. Any Robot Shape covering 4 or more reel positions will become a High Voltage Reel. At the end of the Robot Bonus, the High Voltage Reels will spin and randomly award cash prizes or any of the jackpots. This feature is actually more attractive than the free spins game, as it includes a Mini (20x), Minor (100x), Major (2000x), and a Grand (5000x) jackpot.

4 or more adjacent ROBOT symbols will award a prize as below:

Positions Covered Bonuses Available
4 Minor or Mini Bonus, or up to 20x total bet
6 Minor or Mini Bonus, or up to 40x total bet
8 Minor or Mini Bonus, or up to 80x total bet
9 Minor or Mini Bonus, or up to 100x total bet
10 Major, Minor, or Mini Bonus, or up to 150x total bet
12 Major or Minor Bonus, or up to 250x total bet
15 Grand or Major Bonus, or up to 750x total bet

Volts And Bolts Free Spins

Free Spins game resulting in a 22.9x Big Win

Landing 3, 4 or 5 scatter symbols will award 12 Free Spins, and 2x, 15x and 100x total bet for the number of symbols landed, respectively. During Free Spins, only Scientist and Wild symbols appear on reel 3, and that’s about it as far as the free spins go. The Free Spins feature can be retriggered by landing 3 or more Scientist symbols again and the Robot Bonus can be triggered here as well.

Volts And Bolts Conclusion

Volts And Bolts is a horrible game, let’s just put that out in the open right away. It has a relatively low RTP of 95.63% and a max win of 750x, which can only be achieved by landing a full screen of robots in the Robot bonus. The free spins game lacks innovation and is pretty much identical to the main game. Sure, there is a 5000x Grand jackpot, but good luck with that.

The free spins were surprisingly hard to trigger considering its crappy potential and, instead, it appears that most of the payouts are allocated to the Robot bonus. Being a jackpot slot, a percentage of every bet wagered will be used to fund the jackpots, hence the somewhat lower RTP. The Robot bonus triggered quite frequently but never paid more than a whopping 50x. It’s quite sad to see the WMS logo on a slot like this, especially since it has no classic WMS feel to it whatsoever.

Volts And Bolts is available across all WMS casinos.

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Volts And Bolts (WMS)
  • Graphics & Production
  • Entertainment Value
  • Potential
  • Bigwinboard Overall Rating

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