Helloween Slot Review
Purple mist drifts through a stone hall behind the reels, and beyond the parapets, blue ridges and golden trees stand in full daylight. It barely looks like a Halloween slot, and that’s the tell: this is a band tribute first. Helloween is the rare music slot that turns the band’s own song titles into the feature list rather than the decoration, so knowing the catalogue tells you something about how the game actually plays.
Play’n GO build this one on a 5×4 grid with wins paying left to right, an RTP of 94.2%, and a ceiling of 5,000x the bet. It sits in a long line of their music slots, alongside Sabaton and Hammerfall. Helloween’s twist is that the band’s catalogue doubles as the feature list: one scatter trigger forks into seven outcomes, six of them named after songs. That’s the reason to be curious about the game.
Symbols and Pays
The reels sit under that carved archway, four rows deep, with stone orbs capping the pillars and spiked ironwork hanging at the corners. All wins pay left to right, and only the highest win counts on each line. There’s no payline count published for the game, so the ways a line can form are fixed by the grid alone.
The Wild is a pumpkin jack-o’-lantern that substitutes for everything except the Scatter, and it’s the joint-richest symbol on the grid, paying 20x the total bet for five. The Scatter is a crystal ball with keys, and it does double duty as a Wild too. That doubling matters more here than in most games, because three of them are also the door to the entire bonus.
Here’s what each symbol pays, as multiples of the total bet for three, four and five of a kind:
- Ring – 5x, 10x, 20x
- Crystal Ball / Hands – 3x, 6x, 12.5x
- Three creatures / gargoyles – 2x, 5x, 10x
- Hand / claw with flame – 1.5x, 4x, 8x
- A, K, Q – 0.6x, 1.2x, 2.5x
- J, 10, 9 – 0.4x, 0.8x, 1.5x
The themed symbols carry the character of the artwork – a gold ring in its frame, a crystal ball held in hands, a claw wrapped in flame – while the royals fill the lower rungs. Because the paytable is stated against the total bet rather than a line bet, those royal multiples read smaller than they would on a per-line basis.
Five of a kind is where the money is, and only the Ring and the Wild get anywhere near interesting money for it. Below the Ring, the drop-off is steep: the Crystal Ball pays 12.5x for five, and everything under it returns less than a tenner on a pound stake. Three-of-a-kind wins on the royals return a fraction of the bet, which tells you the base game is built to grind small returns while you wait on the feature.
Keeper of the Seven Keys
The feature needs a Scatter on reels 1, 3 and 5 together. Because Scatters are also Wilds, the symbols that open the bonus are helping to pay for it on the way in. Once it triggers, one of seven outcomes is picked at random.
Six of those outcomes take their names from the band’s Keeper of the Seven Keys era, and each one awards five free spins built around a different Wild behaviour:
- I’m Alive – Wilds are held in place and expand up or down one position on each spin
- Future World – Wilds land and expand to fill the whole reel
- Eagle Fly Free – one Wild is flown onto the reels every spin, changing position on each remaining spin
- Dr. Stein – all instances of a randomly selected royal symbol turn Wild on each spin
- March of Time – every Wild becomes a Walking Wild, staying on the reels and moving left with each spin
- I Want Out – Wilds explode, expanding into 2×2 symbols
Five spins is a short round, but each modifier keeps adding Wilds as it goes, so the later spins carry the most weight. I’m Alive grows its held Wilds one direction at a time, and Future World can turn a single reel entirely Wild. Eagle Fly Free guarantees a fresh Wild every spin, which makes it the most consistent of the six.
Dr. Stein is the swingiest of the lot, since the royal it converts is chosen anew each spin. A spin that converts a royal spread across a busy board can turn much of the grid Wild; a spin that picks a royal with one or two instances barely changes anything. March of Time turns every Wild into a Walking Wild that keeps moving left with each spin, and I Want Out turns single Wilds into 2×2 blocks that cover multiple positions at once. None of the six lasts long, and none of them can be chosen – the game picks for you.
Helloween Free Spins
The seventh outcome is the round the game is named for. Helloween Free Spins awards seven free spins with no Wild modifier attached. Instead, collecting Scatters during the round re-triggers Keeper of the Seven Keys, which can land another feature entirely.
That re-trigger is the most interesting rule in the game. A song feature that fires inside the free spins plays out as its own five-spin round with its own Wild behaviour, and when it ends the free spins resume. If the re-trigger lands Helloween Free Spins again, seven more spins are added. In theory the round can chain indefinitely; in practice it’s the game’s main route to anything approaching the top of the paytable.
Helloween Multiplier
After any feature finishes, a multiplier wheel can spin up and multiply the win. The values on offer are x2, x3, x5 and x10. It isn’t guaranteed to appear, and there’s no way to influence it. When the x10 lands on a Walking Wild run, it does the heavy lifting.
Our Honest Verdict
Overall Rating: 7/10
Waiting on three Scatters is the whole game, and because those Scatters are also Wilds, the wait pays a little on the way. When the trigger finally lands you get a setlist rather than a single round – the closest a slot comes to a band playing a different set every night, which suits a group whose double album gave this game its whole structure.
The chaining free spins are the best thing here. A re-trigger inside the round stacks a song feature onto seven spins that then resume, so one bonus can keep paying well after it started. The weakness is the maths under the show: 94.2% is low, symbol pays outside the Wild won’t carry a session, and the multiplier wheel that produces the big results turns up when it pleases.
Metal fans and players who’d take variety over value will get on with it. Anyone who needs generous returns for the waiting won’t. For the faithful, though, the setlist is true to the band and the encore can run all night – and that’s worth something at this ticket price.
Helloween FAQs
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How do you trigger Keeper of the Seven Keys in Helloween?
Landing a Scatter on each of reels 1, 3 and 5 in the same spin opens the feature. Because Scatters double as Wilds, they help form wins on the way in. One of seven random outcomes is then picked. -
How many free spins do the song features award?
Each of the six song features – I’m Alive, Future World, Eagle Fly Free, Dr. Stein, March of Time and I Want Out – awards five free spins with its own Wild modifier attached. -
Can Helloween Free Spins retrigger?
Yes. Collecting Scatters during the round re-triggers Keeper of the Seven Keys, and if that lands Helloween Free Spins again, seven more spins are added to the round. -
What does the Helloween Multiplier do?
After any feature finishes, a multiplier wheel can award x2, x3, x5 or x10 on the win. It isn’t guaranteed to appear, so treat it as a bonus on top rather than something to expect. -
What is the RTP of Helloween?
Helloween runs at an RTP of 94.2%, which is below the level most players look for in a modern slot. -
What is the maximum win on Helloween?
The maximum win is 5,000x your bet. -
What is the grid size of Helloween?
Helloween plays on a 5×4 grid, with all wins paying left to right and only the highest win paid per line. -
Who makes Helloween?
Helloween is made by Play’n GO, and it’s one of several music-themed slots in their catalogue alongside Sabaton, Hammerfall and Def Leppard: Hysteria. Helloween’s release date is 15 October 2020.
