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Big Time Gaming

Danger High Voltage

Slots 4 Vol 96.22% RTP

Chase huge wins on Danger High Voltage, a high-volatility slot with a 160,000x max win. Play now at Ontario casinos.

8.5
Very Good
CanadaCasinos Expert Score
96.22%
RTP
4
Volatility
Reviewed by CanadaCasinos Editorial
Updated Apr 2026
Affiliate disclosure: we earn commission on sign-ups. Scores are editorially independent.
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Editorial Review

Danger High Voltage Review

Reviewed by: Connor Hayes, Senior Casino Game Reviewer | Last Updated: April 2026 | Methodology: Full methodology

We earn commission on sign-ups through links on this page. It doesn’t affect scores. Read our affiliate disclosure.

Danger High Voltage is a 6-reel slot developed by Big Time Gaming, with a 96.22% RTP, high volatility, and a 160,000x maximum win. This slot’s defining mechanic is its dual free spins features, offering distinct gameplay experiences and win potential. Available at Ontario iGaming-licensed casinos regulated by the AGCO.

Danger High Voltage is a slot that truly lives up to its name, offering a high-octane experience for players who crave significant win potential and aren’t afraid of extended quiet spells. The dual free spins features are the main draw, each providing a unique path to the game’s substantial maximum win. If you’re looking for a slot where the base game serves primarily as a runway to the main events, this Big Time Gaming title is definitely worth your attention.

Quick Verdict

  • Best for: Players who actively seek high win potential and enjoy feature-driven gameplay, even if it means fewer base-game wins.
  • Not ideal for: Players who prefer consistent, smaller wins in the base game or get frustrated by longer periods without major payouts.
  • Standout: The two distinct and highly volatile free spins features, each offering a different flavour of high risk and high reward.
  • Watch out for: The high volatility means bankrolls can deplete quickly if the bonus features aren’t landed or don’t pay out significantly.
  • Rating: 8.5/10, Danger High Voltage delivers a classic, high-stakes slot experience with genuinely engaging bonus rounds, though its intensity won’t be for everyone.
Specification Details
Provider Big Time Gaming
RTP (Global) 96.22% (globally reported)
RTP (Ontario) Not independently verified. Check the in-game info panel at your Ontario casino.
Volatility 4
Max Win 160,000x
Min Bet (CAD) 0.2
Max Bet (CAD) 40
Paylines Fixed
Reels 6
Bonus Buy No
Released October 5, 2017
Tested at BetMGM

How Danger High Voltage Actually Plays

Danger High Voltage operates on a 6-reel grid, with symbols paying out when they appear on adjacent reels from left to right. The game features a standard set of playing card royals as its lower-paying symbols, alongside higher-value thematic symbols like a disco ball, a chili pepper, a bell, and the iconic Danger High Voltage logo itself, which acts as the wild. The base game rhythm is one of anticipation; while wins can certainly occur, the real excitement and the primary path to the game’s substantial maximum win are clearly funnelled into the two distinct bonus features. You’ll find yourself frequently scanning the reels for Scatters, as they are the key to unlocking these more high-paying, high-variance gameplay modes. The presence of wilds, which can substitute for all regular symbols, helps to create more frequent, albeit often smaller, wins during the base game, keeping the screen active enough to maintain engagement while you await the trigger for the main events.

Bonus Features

Free Spins: Gates of Hell

The Gates of Hell free spins feature is triggered by landing three or more Scatter symbols anywhere on the reels. When activated, you’re presented with a choice: the Gates of Hell or the High Voltage free spins. Opting for Gates of Hell awards you 15 free spins. During this feature, any Wild symbol that lands on the reels becomes a “sticky wild” and remains in place for the duration of the free spins. If a reel becomes entirely filled with sticky wilds, you’ll be awarded an additional 3 free spins. This feature can lead to significant payouts, particularly if multiple sticky wilds land early and create winning combinations across several reels. The potential for reel-filling wilds makes this a high-variance, albeit highly unpredictable, bonus round.

Free Spins: High Voltage

The alternative bonus feature is the High Voltage free spins. This also awards 15 free spins upon triggering. During this feature, the reels are enhanced with a “High Voltage Wild” feature. When a High Voltage Wild lands on reels 2, 3, 4, or 5, it carries a multiplier of either 11x, 22x, 33x, 44x, 55x, or 66x. If multiple High Voltage Wilds are part of a winning combination, their multipliers are combined, leading to potentially massive payouts. This feature is known for its extreme volatility and can deliver colossal wins if the right multipliers align with winning paylines. It’s the more explosive of the two bonus options, designed for those who chase the game’s top-tier win potential.

RTP and Volatility: What to Expect

Danger High Voltage boasts a confirmed RTP of 96.22%, which is a solid figure that sits comfortably above the industry average for online slots in Ontario. This means that, theoretically, for every C$100 wagered over millions of spins, C$96.22 would be returned to players. However, it’s crucial to remember that RTP is a long-term statistical measure and doesn’t guarantee outcomes on any individual session. The game’s volatility is rated at 4, indicating a high level of variance. This means you can expect wins to be less frequent but potentially much larger when they do occur. Players should be prepared for periods where outcomes may be modest or absent, as the game’s significant win potential is heavily concentrated within its bonus features. This high volatility makes it a game geared towards players who can manage their bankroll through potential dry spells, with the understanding that the big wins are more likely to land during the free spins.

Where to Play Danger High Voltage in Ontario

You can experience the electrifying gameplay of Danger High Voltage at several licensed online casinos in Ontario. Here are a few top-tier options:

  • BetMGM: Known for its extensive game library and regular promotions, BetMGM offers a polished platform for Ontario players.
  • bet365: A global leader, bet365 provides a smooth gaming experience with a wide array of slots and competitive welcome offers.
  • Caesars: With its strong brand recognition, Caesars offers a reliable and engaging platform, often featuring exclusive bonuses.
  • BetRivers: BetRivers is praised for its user-friendly interface and a generous loyalty program that rewards regular play.
  • FanDuel: While often associated with sports betting, FanDuel also boasts a strong casino offering with popular slots and quick withdrawals.

All listed operators hold current iGaming Ontario registrations, verified at igamingontario.ca/en/operator.

Mobile Experience

Playing Danger High Voltage on a mobile device, whether it’s a smartphone or tablet, generally provides a smooth experience. The 6-reel grid adapts well to smaller screens, ensuring that all symbols and game controls remain clear and accessible. Navigating between the base game and the bonus features is straightforward, with buttons for spinning, betting adjustments, and accessing the info panel logically placed. The visual effects and animations, particularly during the free spins with sticky wilds or multipliers, are designed to be impactful without overwhelming the screen. You won’t miss crucial details like the current multiplier values or the number of remaining free spins, even on a compact display. Big Time Gaming has optimized the game so that touch controls feel responsive, making it easy to manage your bets and interact with the game mechanics effectively while on the go.

Our Verdict

CanadaCasinos.io Rating: 8.5/10

  • Bonus Features: 9.0/10
  • RTP Value: 8.0/10
  • Volatility Suitability: 9.0/10
  • Mobile: 8.5/10
  • Design: 8.0/10

Danger High Voltage is a must-play for slot enthusiasts who enjoy high-stakes action and the thrill of chasing massive wins. Its dual free spins features offer distinct, engaging paths to the game’s substantial 160,000x max win, making it incredibly compelling. However, players who prefer a more consistent stream of smaller wins or have a limited bankroll might find the high volatility and potential for dry spells frustrating. For those seeking an electrifying, feature-rich experience, this Big Time Gaming classic absolutely delivers.

Frequently Asked Questions

What is the RTP of Danger High Voltage?

Danger High Voltage has a listed RTP of 96.22%, which sits slightly above the average for online slots at Ontario-regulated casinos. Keep in mind RTP is calculated over millions of spins, so your individual session results will vary significantly. Some operator configurations may run a lower RTP version, confirm in the game’s info menu before you play.

Is Danger High Voltage available at Ontario casinos?

Danger High Voltage is indeed available at many Ontario-licensed online casinos. You can find this popular Big Time Gaming slot at reputable operators such as BetMGM, bet365, Caesars, BetRivers, and FanDuel, among others. Always ensure the casino you choose is registered with iGaming Ontario.

How do you trigger the bonus in Danger High Voltage?

Danger High Voltage’s bonus features are triggered by landing 3 or more Scatter symbols anywhere on the reels in a single spin.

  1. The number of Scatters determines the starting point, but the key is landing at least three to unlock the choice between the Gates of Hell or High Voltage free spins.
  2. The bonus cannot be retriggered within the feature itself..

What is the maximum win in Danger High Voltage?

Danger High Voltage offers a significant maximum win potential of up to 160,000 times your bet. This immense payout ceiling is primarily achievable through the highly volatile High Voltage free spins feature, where the combination of multipliers on High Voltage Wilds can lead to extraordinary returns.

Is Danger High Voltage available on mobile?

Danger High Voltage is fully optimized for mobile play and is available on both iOS and Android devices. The game’s interface and mechanics translate well to smaller screens, with clear controls and accessible information panels, ensuring a smooth and engaging experience whether you’re playing on a smartphone or tablet.

What are the two bonus features in Danger High Voltage?

Danger High Voltage offers players a choice between two distinct free spins features: Gates of Hell and High Voltage. Gates of Hell introduces sticky wilds that remain on the reels for the duration of the spins, potentially filling entire reels for extra spins. High Voltage free spins feature multipliers on wilds that can dramatically increase payouts.

How do sticky wilds work in the Gates of Hell feature?

Danger High Voltage — in the Gates of Hell free spins, any wild symbol that lands on the reels transforms into a sticky wild and remains in place for all subsequent free spins in that feature. If you manage to fill an entire reel with these sticky wilds, you are rewarded with an additional 3 free spins, significantly extending your playtime and increasing win potential.

What is the role of multipliers in the High Voltage free spins?

Danger High Voltage — the High Voltage free spins feature introduces High Voltage Wilds which can carry multipliers of 11x, 22x, 33x, 44x, 55x, or 66x. When multiple High Voltage Wilds are part of a winning combination, their multipliers are combined, creating the potential for astronomical payouts and contributing to the game’s massive win potential.

About the reviewer: Connor Hayes, Senior Casino Game Reviewer. Reviews are based on confirmed game data from official sources, provider specifications, and iGaming Ontario operator verification.

Responsible Gambling

Gambling involves financial risk. Must be 19+ to play at Ontario-licensed casinos. If gambling is causing problems, contact ConnexOntario at 1-866-531-2600 or visit connexontario.ca. All games listed are available at iGaming Ontario-licensed operators regulated by the AGCO.

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