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Danger High Voltage slot review

Added by Big Time Gaming. Information last updated: 06/05/2021

User rating:

- (0)

Expert rating:

2.5 (1)

Game information

Game supplier: Big Time Gaming

Release date:05/2017



Max. win:bet x 124000

Mobile version:Support all devices

Play Danger High Voltage




Sticky wilds

Stacked wilds

Multiplier wilds


Food & drink



User ratings (0)

Game design:



Game sounds:

Mobile gaming:



Screenshot Screenshot Screenshot
RTP (Return to player):
Max. win:
bet x 124000

Bojoko score (compared to other slots on Bojoko)
Big Time Gaming score (compared to other slots of supplier)

Expert's review Trystan Michielsen

Slot tested

Danger High Voltage brings us into the heart of a power plant as it generates electricity for its surroundings, to see if we can find some crackling wins. This slot features free spins, sticky wilds and multipliers that make it more likely we’ll walk away zapped.

This slot was released in 2017 by developer Big Time Gaming, a studio that hasn’t quite reached the upper echelons of slot development but is definitely working on it. The game includes a 6-reel, 4-row playing field with a massive 4,096 paylines. This is due in part through the consecutive reels mechanic that I’ll talk about later.

The game has little to offer in terms of graphics as you’ll find us in what seems to be the inside of a Rubik’s Cube, while most of the symbols are either simple card letters or generic symbols that don’t seem related to the theme at all. The only thing I would really describe as fitting the theme is the Wilds, mostly because they can be seen crackling with electricity.

When it comes to the sounds, you’ll probably also leave disappointed. We can hear a generic beat in the background as if we’re in a club but it never kicks into high gear and makes it frustrating to listen to. Wins and Wilds trigger short soft effects but these also don’t really add to the excitement in any way.


Danger High Voltage has a larger than average playing field and to compensate is also fitted with quite a few different symbols. I found all of these to look rather boring and simple, without any animations whatsoever. Getting a win does little more than lighting up the affected tiles before continuing the game. I would expect this game to mostly appeal to players that enjoy the basic gameplay and nothing else.

The symbols in the game include:

  • Scatter: Get 3 or more Scatter symbols on the screen to activate the Free Spins mode. Max. 100x your bet with six-of-a-kind on the screen.
  • Wild: Wilds substitute all other symbols in the game except the Scatter.
  • Purple Skull: Max. 25x your bet with six-of-a-kind on a win line.
  • Bell: Max. 5x your bet with six-of-a-kind on a win line.
  • Disco Ball: Max. 1.5x your bet with six-of-a-kind on a win line.
  • Taco: Max. 1.5x your bet with six-of-a-kind on a win line.
  • Ace: Max. 1.25x your bet with six-of-a-kind on a win line.
  • King: Max. 1.25x your bet with six-of-a-kind on a win line.
  • Queen: Max. 0.75x your bet with six-of-a-kind on a win line.
  • Jack: Max. 0.75x your bet with six-of-a-kind on a win line.
  • 10: Max. 0.5x your bet with six-of-a-kind on a win line.
  • 9: Max. 0.4x your bet with six-of-a-kind on a win line.

Because of this balance between the size of the playing field and the number of symbols, the game lands on Medium Volatility. This also felt like my experience playing the game, triggering decent wins once in a while but not really being granted anything else in between. The payouts per bet line are low because the game assumes players will get multiple wins at the same time.


Just like other Big Time Gaming slots, such as StarQuest Megaways, this slot focuses a lot on its Wilds and giving them multiple functionalities. On the one hand, I like this but it also means that without the Wilds the game becomes increasingly difficult and there is no way to control how the Wilds will behave.

The features include:

  • Consecutive Reels: Wins are counted whenever a symbol appears on consecutive reels from left to right. The location of the symbols on each reel is not important.
  • Stacked Wilds: Wilds appear stacked, filling the entire reel.
  • Multiplier Wilds: Wilds can have a multiplier between 11x and 66x your win applied during the High Voltage Free Spins mode.
  • Sticky Wilds: One symbol is selected to be the Sticky Wild during the Gates of Hell Free Spins mode. Sticky Wilds stay on the screen for the entire free spins mode.
  • Free Spins: When the player gets 3 or more Scatter symbols on the screen they get to pick the Gates of Hell or High Voltage Free Spins mode.

During the base game, the Stacked Wilds are really the only feature at play, even though it can have a multiplier applied to it. This can go up to 6x your win but isn’t always applied to the Wilds. This element appears often enough to be interesting but it rarely creates any big wins, often only making back a handful of bets.

Speaking of bets, players can pick a bet between £0.20 and £50 per spin. It’s probably smarter to start off low because there is some serious volatility at play here. I found the game to be very dependent on the free spins modes to balance things out.

Yes, I did mention multiple free spins modes. Whenever the player manages to get 3 or more Scatter Symbols on the screen, they get to pick between 1 of 2 free spins modes. There is the Gates of Hell mode, where the player receives 7 free spins. During this mode, one symbol is randomly selected to be a Sticky Wild and stays on the screen for the entire mode.

The other Free Spins mode is called High Voltage and focuses on the Multiplier Wilds. When this appears, the Wild can apply a multiplier between 11x and 66x your bet on the screen. To play with these, the player receives 15 free spins.

I should note that getting the Free Spins mode to activate is very difficult and I only managed to do it once in over an hour of playing. Considering the need for this mode to activate in order to get any big wins, I’d consider this a serious flaw.

In Conclusion

Big Time Gaming clearly isn’t quite where its name says it wants to be. They are still small-time and their slots feel like it. The graphics are simple and stale, showing little promise in their creativity or attention to detail. Other small studios have shown that a lot is possible with limited means, but this developer does not seem interested in trying that.

Instead, you’ll be treated to a very simple but effective slot with gameplay that is focused around Wilds. This is fine in theory but I found the Free Spins mode to activate very rarely and we need that to have the Wilds create big wins. Instead, I found the gameplay to be about as interesting and varied as the graphics.

Players who are looking for a very basic slot with similarly simple gameplay will probably get some enjoyment out of Danger High Voltage. The max. win of 124,000x your bet is absolutely massive and probably also an incentive for some, but generally I would suggest casual players to look elsewhere for an entertaining slot.

Overall rating:


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  • Features

    Wins and bets

    RTP (Return to Player):96.22%


    Max. win:bet x 124000

    Min. bet:£0.2

    Max. bet:£50

    Progressive jackpot:

    Reels & playlines



    Non-standard layout:

    Max. lines:4096

    Min. lines:4096

    Win both ways:

    Other features


    Expanding reels:

    Stacked symbols:

    Colossal symbols

    Auto play:

    Turbo play:

    Quick play:

    Virtual reality:

    Bonus features

    Bonus game:

    Random bonus:

    Progressive bonus:

    Buy bonus:

    Free spins:

    Scatter symbols:

    Bonus game symbols:


    Standard wilds:

    Sticky wilds:

    Walking wilds:

    Stacked wilds:

    Random wilds:

    Multiplier wilds:



    Walking re-spins:

    Sticky re-spins:

    Cascading reels:

    Sticky wins:


    You can play Danger High Voltage in English, Swedish


    Danger High Voltage supports GBP, EUR, SEK, CAD and 2 other currencies.

    All supported currencies:
    GBP (£), EUR (€), SEK (kr), CAD (C$), AUD ($)


    Release date 05/2017
    24th newest on Big Time Gaming 825th newest on Bojoko
    RTP 96.22% 0.18% > average
    24th highest on Big Time Gaming 544th highest on Bojoko
    Win up to 124000 x your bet
    13th highest on Big Time Gaming 56th highest on Bojoko
    Paylines 4096 20380% > average
    21st highest on Big Time Gaming 98th highest on Bojoko
    Min bet £0.2 per spin
    11th lowest on Big Time Gaming 625th lowest on Bojoko
    Max bet £50 per spin
    7th highest on Big Time Gaming 930th highest on Bojoko
    Rated 0 by 0 members
    The most rated on Big Time Gaming 38th most rated on Bojoko
    30 more slots listed by Big Time Gaming

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    Expert's profile


    Trystan Michielsen

    Trystan Michielsen

    Trystan Michielsen is a Dutch native who started his career as a content writer for various small businesses who were interested in creating an online presence.

    When the opportunity arose to move to Malta and work in the iGaming sector, Trystan didn't hesitate to make the plunge. Here he worked as a Content and SEO specialist for different companies before moving back home.

    Now acting as a freelancer he maintains his connection with the online slot community by playing and reviewing the wide variety of videoslots that are released.

    Trystan enjoys playing the slots that offer a full experience, focusing on more than just the technical details but keeping an eye on its presentation. Graphics, music and style can create a game that's more than the sum of its parts.

    A writer at heart, putting thoughts to paper is something he's done for as long as he remembers. In his free time, he enjoys writing fiction as well as watching and reviewing movies.

    Latest reviews:
    Danger High Voltage cover

    Game supplier:Big Time Gaming

    Release date:05/2017

    RTP (Return to player):96.22%

    Max. win:bet x 124000

    Mobile version:Yes

    User rating: 0
    Expert rating: 2.5

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