Danger High Voltage
Danger High Voltage is Big Time Gaming’s tribute to the Electric Six track of the same name. Released in 2017, it swaps Megaways for a fixed 4,096 ways to win on a 6×4 grid, then fills the base game with random wild features and gives you a choice of two very different free spins rounds. It was also the first slot to offer a feature where a random symbol becomes a sticky wild for the whole bonus.
This guide breaks down how the grid, the base game features and the two bonus options work, what the 96.22% RTP listed in the game rules means, and how to approach a game where your bonus choice changes the shape of every session. Headline numbers are checked against the rules in the official demo on Evolution’s games site; where a figure is not published, we say so instead of guessing.
Where to Play Danger High Voltage
Danger High Voltage is widely available at casinos that carry Big Time Gaming. The casinos below accept Australian players and are reviewed on BetsAuthority. Before playing, open the game rules at the casino and check the RTP, because operators can choose between configurations of this title.
Quick Facts About Danger High Voltage
| Parameter | Details |
|---|---|
| Slot | Danger High Voltage |
| Provider | Big Time Gaming |
| Release | 2017 |
| Layout | 6 reels / 4 rows |
| Ways to win | 4,096 |
| RTP | 96.22% standard (also 96.22% via bonus buy); other operator versions exist |
| Volatility | High (volatility index 7.0) |
| Base game features | Wild Fire and Wild Electricity full reel wilds on reels 2–5 (x6 per Wild Electricity) |
| Free spins | 3+ scatters: choice of High Voltage (15 spins, x11–x66 wilds) or Gates of Hell (7 spins, up to 19) |
| Signature feature | Random symbol becomes a sticky wild for the feature |
| Maximum win | Not stated in the game rules or on Evolution’s game page; casinos may apply an award cap |
| Bet range | 0.20 to 15 per spin in the official demo (casino limits can differ) |
| Bonus buy | Free spins for 65x the stake, then choose the feature (where permitted) |
| Devices | Desktop and mobile (HTML5) |
How Danger High Voltage Works
The game has six reels with four rows each. Every spin uses all 4,096 ways (4 x 4 x 4 x 4 x 4 x 4), and wins pay for matching symbols on adjacent reels starting from the leftmost reel, in any row. Card ranks from 9 to A make up the low-paying symbols, while the premium set is a taco, a disco ball, a bell and the sugar skull, which tops the paytable at 25x the stake for six of a kind. The scatter is a heart-shaped “My Desire” tattoo that pays anywhere on the grid, and it is the key to the free spins.
The game feels busy and fast. With a fixed grid and no cascades, most of the action in the base game comes from two random wild features rather than chains of wins.
Wild Fire and Wild Electricity
Two kinds of wild can transform a base game spin. Both are full-reel wilds that land on reels 2 to 5 and substitute for every symbol except the scatter. Wild Fire sets a whole reel alight, while Wild Electricity also applies a 6x win multiplier for every Wild Electricity reel that takes part in a win. Either can arrive on any spin, and they are the main reason the base game occasionally produces a surprising result without the bonus.
Because these features are random, they cannot be planned for. The practical takeaway is that the base game is not entirely dead weight here – but you should still expect the bulk of the game’s value to come from free spins.
Free Spins: Gates of Hell or High Voltage
Landing three or more heart scatters triggers the bonus, and you then choose one of two features, which then plays out automatically at the stake that triggered it. Big Time Gaming highlights this choice on its game page, and it is what keeps the game interesting after hundreds of spins.
Gates of Hell Free Spins is the round built around the studio’s first-to-market mechanic: a random symbol becomes a sticky wild for the duration of the feature. It starts with 7 free spins, and every time the chosen symbol lands on reels 2 to 5 it stays in place as a wild until the round ends, so the screen gradually fills with wilds. Four sticky wilds in one reel award three extra spins, up to a total of 19. Scatters do not appear in this round, and its value depends on how often the chosen symbol shows up.
High Voltage Free Spins gives you 15 free spins and introduces the High Voltage Wild, a full reel on reels 2 to 5 that lights up a multiplier between x11 and x66 for the wins it is part of. Three or more scatters during the round add another 15 spins, with no limit on retriggers. This round is more all-or-nothing: many spins pay little, but a multiplier wild reel landing alongside a good combination can produce a very large result.
Where the casino and jurisdiction allow it, a Bonus Buy lets you buy the free spins for 65 times the stake. The feature choice screen appears straight after the purchase, so you still pick between High Voltage and Gates of Hell. Buying does not change the volatility of either round, and the cost adds up quickly.
RTP: Check Your Version
The current game rules list an RTP of 96.22% for both regular play and the bonus buy, while Big Time Gaming’s own page still shows an older 95.67% figure. The rules also list other configurations that operators can choose: 98.24%, 95.74%, 91.20% and 86.07%. The visuals and features are identical across versions, so the only way to know which one you are playing is to read the RTP line in the game rules at your casino. Over a long session, even half a percentage point makes a measurable difference.
Neither the in-game rules nor Evolution’s game page state a fixed maximum win. Some jurisdictions and casinos apply an award cap, which the help screen shows when one is in place.
Worked Example: Comparing the Two Bonuses
Imagine you trigger free spins at a A$1 stake. If you pick Gates of Hell and the sticky symbol is one that lands often, the reels may fill with wilds within a few spins, and each later spin pays across many ways at once. If the chosen symbol rarely appears, the round can finish quietly. If you pick High Voltage, most spins might return a few dollars each – but a single one-way win of A$0.50 that lands next to a lit x66 wild reel pays A$33, and a premium combination with the same reel can pay many times more than the whole Gates of Hell round.
The figures are illustrative, but the pattern is the point: Gates of Hell trades upside for steadier progress, while High Voltage concentrates its value in rare spins. Choose based on your bankroll, not on which round paid last time.
Bankroll Tips for Danger High Voltage
- Budget for at least 200 to 300 spins per session; scatters can be scarce.
- Decide in advance which free spins option suits your budget, and avoid switching based on recent results.
- Remember that this game exists in several RTP versions, from 86.07% up to 98.24% – check your casino’s version.
- Keep stakes steady and never chase losses by increasing your bet.
- Set deposit and time limits before you start playing.
Pros and Cons of Danger High Voltage
| Pros | Cons |
|---|---|
| Choice of two very different free spins rounds | Lower-RTP versions exist, down to 86.07% |
| Random Wild Fire and Wild Electricity features | High volatility with long quiet spells |
| Innovative sticky-wild symbol mechanic | High Voltage round can pay very little |
| Memorable soundtrack and visual style | No fixed maximum win published |
| Solid 96.22% standard RTP and fixed 4,096 ways | Theme and audio will not suit everyone |
Theme, Sound and the Sequel
Much of the game’s personality comes from its licensed soundtrack. The Electric Six song plays over a bright, neon-lit backdrop, and the win animations lean into the same tongue-in-cheek style. It is a game you either love or switch to mute. Its popularity later led Big Time Gaming to release Danger High Voltage 2, which reworks the formula with new mechanics; if you enjoy the original, the sequel is worth a look, but check its own rules and RTP rather than assuming they match.
Demo Play vs Real Money
Big Time Gaming’s own free-play portal requires a sign-in and Evolution’s official demo is not available from Australia, so no demo is embedded on this page. If your casino offers a fun-mode version, use it to try both bonus options several times. Seeing how often each round pays well helps you decide which one fits your style before risking real money.
For real money, choose a licensed casino that shows the RTP clearly, pays out reliably after verification and offers deposit limits and time-outs. Our casino reviews compare these details.
Frequently Asked Questions
The current game rules list 96.22% for both regular play and the bonus buy. Other configurations exist at some casinos, from 86.07% to 98.24%, so check the RTP line in the game’s rules before you play.
The game uses six reels with four symbols each, giving a fixed 4,096 ways to win on every spin.
When three or more scatters trigger the bonus you choose between Gates of Hell, 7 spins (up to 19) where a random symbol becomes a sticky wild, and High Voltage, 15 spins with wild reels carrying x11 to x66 multipliers.
Neither is better in the long run. Gates of Hell gives fewer spins built around sticky wilds, while High Voltage offers more spins with multiplier wild reels that can produce bigger but less frequent results.
Yes. Most of the game’s value comes from the free spins and multiplier wilds, so results swing a lot between sessions.
Big Time Gaming’s own free-play portal needs a sign-in and Evolution’s official demo is not available from Australia, so a demo is not embedded here. Many licensed casinos offer the game in fun mode.
Responsible Gaming Note
Danger High Voltage is entertainment, not income. Only play if you are 18 or older, set a budget and a time limit before you start and stop when you reach either one. If gambling is no longer fun, free and confidential support is available 24/7 from Gambling Help Online on 1800 858 858.
Final Verdict
Danger High Voltage is a 2017 Big Time Gaming slot with 4,096 ways on a 6×4 grid. Random wild features keep the base game lively, and the choice between a sticky-wild round and a multiplier-heavy round gives you real control over how the bonus plays. The trade-offs are high volatility and RTP versions that vary by casino, so check the RTP at your casino, pick your bonus with your budget in mind and keep stakes sensible.
