RTP 96.27%
Volatility Medium-High
Provider Hacksaw Gaming
Reels 6
Paylines Fixed
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Octo Attack Specifications

SoftwareHacksaw Gaming
Game typeVideo slot
ThemeAnimal , Underwater & Ocean
RTP96.27%
VolatilityMedium-High
Reels6
Max Wager (per line)100
Max Jackpot10000
Bet range0.10 – 100.00
Paylines typeFixed
SymbolsWild Symbol, Scatter Symbol
Bonus featuresFree Spins
Progressive JackpotNo
Practice PlayNo
AutoplayYes

Developed by Hacksaw Gaming, Octo Attack is a new release for September 2014. Otto is a new threat to the inhabitants of Earth. However, all is not what it seems, as Otto is incredibly friendly and could be the answer to the big wins.

About Octo Attack

Octo Attack features a derelict city with litter and trash cans strewn across the streets. Otto is seen to the side of the reels, jollying you along as you spin the reels. The black, white and grey monochrome backdrop, a signature in Hacksaw Gaming slots, is complemented by the colourful symbols and the dominant blue Otto.

Octo Attack is available on desktop and mobile devices from 10p to £100 per spin. It’s a medium to high volatility slot with an RTP of 96.27% and a max win capped at 10,000X the bet.

The low-paying symbols are monochrome grey, including a lightning bolt, fishing hook, speech bubbles, boxes, and a heart. The premium symbols are colourful fish skins, beer cans, mushrooms, and ice cream. The most lucrative symbol is the shark, which awards 500x for 26+ matching in a cluster.

The wild substitutes all regular pay symbols but can land with multipliers worth 1x t0 10x the bet.

Gameplay and Features

The 6×6 grid incorporates the cascading reels mechanic, where symbols involved in a winning cluster disappear, and new symbols drop down, potentially creating a string of chain reactions. Winning positions are marked by Ink Stains and are used by the Tenta-Grab feature.

The features in Octo Attack include cascading reels, wild multipliers, free spins, and the Tenta-Grab mechanic.

Tenta-Grab Mechanic

The Tenta-Grab Mechanic is triggered by the Eye of Otto symbol landing, where Ink Stains are on the reels.  The Tenta-Grab mechanic grabs a random symbol and replaces all Ink-Stained positions with the chosen symbol. The Tenta-Grab can select any symbol, including wilds and free spin symbols. If it chooses a wild or multiplier wild, it can significantly enhance the payout.

Eighth Arm Is the Charm (Free Spins)

You’ll need 3 or more FS symbols to trigger the free spins. The number of free spins you receive equals the number of triggering scatters. During the free spins, Ink Stains persist between spins, adding more of a chance for the Tenta-Grab to trigger. If more FS symbols land, additional free spins are granted.

Give Me Eight! (Super Free Spins)

Landing at least three or more epic FS symbols triggers the super free spins. Like the free spins feature, the Tenta-Grab mechanic only grabs wilds or multiplier wilds, and like the regular free spins, Ink Stains remain on the reels until used.

Bonus Buy Options

Rather than wait for the features to trigger naturally, Octo Attack offers various buy-in options, these include:

3x triggers the BonusHunt Free Spins

50x triggers the Tentacular free spins where every spin guarantees a win and 1 Eye of Otto symbol

100x triggers the Eight Arm is the Charm Free Spins

300x triggers the Give Me Eight feature, and the Tenta Grab only grabs Wilds and FS symbols

Conclusion

Octo Attack is an excellent slot that blends dark visuals with high-octane features, ensuring dynamic and rewarding gameplay. The cascading reels and many unique features set it apart from mainstream releases. Give Octo Attack a whirl if you want a more unique and innovative gaming experience with the potential for huge rewards.

Becky M.
Founder & Editor-in-Chief at Slotfruit

Rebecca (Becky) Mosley has been at the heart of the UK online gambling industry since 2008 – making her one of the most experienced voices in the space. She founded Take Marketing Limited and built SlotFruit.co.uk into one of the longest-running independent casino comparison sites in the country.

As editor-in-chief, Becky brings a genuine player-first perspective to everything on the site. She personally oversees every casino review and slot guide, making sure readers get straight-talking, honest information rather than marketing fluff. Her approach has always been the same: transparency, fair bonus terms, and responsible gambling above all else.

Over 17 years in the industry, Becky has built deep expertise across UK Gambling Commission licensing, slot game mechanics, bonus structures, and the constantly evolving regulatory landscape. She works directly with operators and software providers to keep every listing accurate and up to date.

Becky is a Companies House registered director (Take Marketing Limited, company no. 07619813) and is based in Lincolnshire, England.

The numbers on Octo Attack

RTP 96.27%
Higher than 70% of the 5,727 slots we hold a figure for
Where you can play it 31 casinos we have confirmed carry it
More widely stocked than 93% of the slots we track
Volatility Medium To High Not better or worse, just how the wins are spread. Higher means rarer but bigger.
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The numbers on Octo Attack

RTP 96.27%
Higher than 70% of the 5,727 slots we hold a figure for
Where you can play it 31 casinos we have confirmed carry it
More widely stocked than 93% of the slots we track
Volatility Medium To High Not better or worse, just how the wins are spread. Higher means rarer but bigger.