In my opinion, the Octopus is one of Earth’s most fascinating creatures; I mean, what other creature has three hearts and eight arms that all act independently from its brain? Those tentacles are like creatures of their own, acting of their own accord. On top of that, Octopuses fire ink at sealife they’re attacking or defending themselves against. It is that Ink and those tentacles that take centre stage on the Octo Attack slot from Hacksaw Gaming. You’ll see how shortly, but before we get into those features and mechanics, let’s first clear up the core stats of this slot. Octo Attack is a 6×5 cluster pays slot with 96.27% RTP and a 10,000x the stake maximum win.
Ink Stains are left behind on winning positions as part of cascades, and when Eye of Otto symbols land, those stains play their part. Tentacles grab random symbols and convert all Ink Stain positions into those same symbols. Not just the regular paying type, either, but also free spin scatters and wild multipliers that can hold win multipliers of between 1x and 10x. There’s also the chance to trigger two free spin bonus games, and in both, Ink Stains will not reset between spins. Furthermore, if you trigger the better of the free spins bonuses, only Wild Multipliers are grabbed by the Eye of Otto symbols.
Rather than using real money in an attempt to trigger those bonus games to see what they’re all about, why not use the buy bonus features you can purchase for free on the Octo Attack slot demo below?
| Provider | Hacksaw Gaming |
| Reels | 6 |
| Rows | 5 |
| Paylines | Cluster Pays |
| Bonus Rounds | 2 |
| Bet Range | 0.10 - 100 |
| Volatility | Medium |
| Max Win | 10,000x |
| Bonus Buy | Yes |
| RTP | 96.27% |
| Our Rating | 7.2 |
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Octo Attack demo slot
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Octo Attack slot theme, stakes, pays & symbols
There’s no shortage of underwater-themed free slots on our platform to try, though most tend to focus on lost cities, sharks, dolphins, and fishing, so the Octopus is not a creature you often see take the leading role. The only example I can find is the Octopus Armada slot from Blue Guru Games, a typical 5×3 payline slot, so it’s totally different to Octo Attack but also a good option if you’re as fascinated with Octopuses as I am.
So, what symbol payouts can we hope to get our tentacles on when playing the Octo Attack slot? Oddly, the Shark offers the top return, with 500x the stake rewarded for a 26+ cluster. The Jelly Fish and Mushroom come next and return up to 250x, whilst the Soda Can and Fish share a maximum payout of 150x. Dropping down to the lower pays, the Heart, Cube, Speech Bubble, Lightning, and Hook all have an equal 100x top return.
The minimum/maximum wagers permitted during regular play are €0.10 and €100.00, respectively, which is about standard for any Hacksaw Gaming slot. There are 29 betting options in total, to be precise, which is a good offering and should present more than enough choice for all real money players looking to find a suitable entry point.
Octo Attack slot base game
Played within a 6×5 reel matrix, you can win payouts on Octo Attack when clusters of 5 or more matching symbols connect vertically or horizontally and appear in any position on the reels. Winning combinations disappear, and more symbols tumble in from above the reels to potentially create more wins. The cascades stop when no more winning combos are formed.
Wild Symbols
Appearing in any position on the reels, Wild Symbols can hold multiplier values of 1x, 2x, 3x, 4x, 5x, 6x, 7x, 8x, 9x, and 10x. Those multipliers will apply to any winning combinations the wild symbols help to create.
Ink Stains
Whenever winning combinations are paid and the symbols removed, Ink Stains will mark the positions that held the winning symbols. They remain on the reels until the Tenta-Grab mechanic uses them or the spin ends.
Tenta-Grab Mechanic
If the Eye of Otto symbol appears on the reels when there are Ink Stains, it randomly grabs one of the symbols on the reels and transforms all Ink Stains into the same instance of that symbol. The Eye of Otto also becomes the same symbol. It is possible for all symbols, whether regular, wild multiplier, or scatter, to get grabbed by the Eye of Otto. If the chosen symbol is a Wild Multiplier, the new instances will all hold a higher multiplier value than the original.
Octo Attack slot bonus features
There’s not just one bonus game to aim for on Octo Attack, but two. Both are slightly different variations of a free spins bonus, so wrap your tentacles around my explanation of both below.
Eight Arm is the Charm Free Spins
Landing three or more of the regular scatter symbols on a base game spin will trigger the Eighth Arm in the Charm Free Spins bonus game, and you’ll receive the same number of spins as how many scatters triggered the bonus. During the free spins, the Ink Stains will not reset between spins. Furthermore, you’ll receive an additional free spin each time three or more scatters appear on the same spin
Give Me Eight! Free Spins
Alternatively, if three or more Epic Free Spins Scatter Symbols land on the same base game spin, you trigger the Give Me Eight! Free Spins bonus game. Again, the number of those symbols dictates how many spins you receive.
As with the other bonus, Ink Stains do not reset between spins. Furthermore, the Eye of Otto symbols will only grab the Wild or Wild Multipliers and recreate them on the Ink Stains. Three or more scatters on the same spin also reward an additional free spin.
Bonus Buy
The bonus buy options available to you on Octo Attack are:
- BonusHunt FeatureSpins: Costing 3x the current stake, you’ll spin with 5 times more chance of triggering a bonus game.
- Tentacular FeatureSpins: For 50x, every spin will reveal an Eye of Otto symbol and guarantee a win.
- Eighth Arm is a Charm Free Spins: 100x triggers this free spins bonus.
- Give Me Eight! Free Spins: 300x triggers this free spins bonus.
Pros
- I really liked the slot design and Hacksaw Gaming’s unique artistic style.
- A fun headline mechanic that has the potential to pay you well.
Cons
- The main mechanic is fun, but it's been seen in other slots and has just undergone a few minor tweaks.
Octo Attack is not the best Hacksaw Gaming release in 2024, but it's certainly worth some of your time as the provider's unique artistic style returns, the Ink Stain mechanic works well alongside the cascading reels mechanic, and when Wild Multipliers play their part, some big returns can come your way.
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