Octo Attack (Hacksaw Gaming) – Review & Demo Play

Octo Attack: Slot Overview

I've put plenty of spins through Octo Attack, and the hook is immediate. Hacksaw Gaming sets a 6x5 cluster pays grid in a stark city piled with trash, while Otto the Octopus looms at the side. Wins land from five or more touching symbols, tumble away, and leave Ink Stains that can matter later. The flow feels pacey without whiplash, sitting in that medium spot where sessions roll, spikes appear in bursts, and the tentacles keep you watching the grid.

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Octo Attack Symbols and Paytable

Octo Attack's paytable splits cleanly. The hook, lightning bolt, speech bubble, box, and heart are the lows. Coloured highs are the fish, beverage can, mushroom, ice cream, and shark. Five-of-a-kind clusters pay 0.1x to 1x the bet, then values rise with size, topping out at 100x to 500x for 26+ clusters, with the shark as top payer. Because wins use clusters rather than lines, volume and cascades carry the weight rather than single-line shots.

Wild symbols substitute for regulars and can land with adding multipliers from x1 to x10. When you build a decent cluster and connect a Wild Multiplier, the jump feels meaningful, especially if Tenta-Grab feeds the same symbol across the stains. I've seen modest base hits turn into tidy totals when a few wilds drop in sequence. It's not about one miracle icon; it's about getting enough tiles together, then letting multipliers frame the payout.

Octo Attack Symbols and Paytable

Symbol	Quantity	Payout
	26+	x500
	13+	x100
	11+	x30
	6	x1.5
	5	x1
	26+	x250
	13+	x50
	11+	x15
	6	x0.7
	5	x0.5
	26+	x250
	13+	x50
	11+	x15
	6	x0.7
	5	x0.5
	26+	x150
	13+	x25
	11+	x7.5
	6	x0.4
	5	x0.3
	26+	x150
	13+	x25
	11+	x7.5
	6	x0.4
	5	x0.3
	26+	x100
	13+	x15
	11+	x5
	6	x0.2
	5	x0.1
	26+	x100
	13+	x15
	11+	x5
	6	x0.2
	5	x0.1
	26+	x100
	13+	x15
	11+	x5
	6	x0.2
	5	x0.1
	26+	x100
	13+	x15
	11+	x5
	6	x0.2
	5	x0.1
	26+	x100
	13+	x15
	11+	x5
	6	x0.2
	5	x0.1
	Scatter
	Wild

Octo Attack: Slot Features

Winning clusters explode, fresh symbols fall, and those positions get marked by Ink Stains. Land the Eye of Otto when stains are on the grid and the Tenta-Grab wakes up, grabbing one random symbol and replacing every stained spot and itself with that pick. It can grab lows, highs, FS symbols, wilds, or Wild Multipliers. If it grabs a wild or multiplier wild, the replacements will be wilds or multiplier wilds, sometimes higher, sometimes lower than the original.

Free spins come in two flavours. Eighth Arm Is The Charm triggers from 3+ regular FS symbols, awards spins equal to the scatters, and keeps Ink Stains until Tenta-Grab uses them; every 3 regular FS add +1 spin. Give Me Eight! triggers from 3+ epic FS symbols, matches spins to scatters, keeps the stains, and the grab only picks wilds or multiplier wilds; every 3 epic FS add +1 spin. Options are 3x BonusHunt, 50x Tentacular, 100x Eighth Arm, and 300x Give Me Eight.

Bonus Buy Feature

BonusHunt FeatureSpins
Feature Cost:	x3 Bet
RTP:	-
Volatility:	High
Tentacular FeatureSpins
Feature Cost:	x50 Bet
RTP:	-
Volatility:	High
Eighth Arm Is The Charm
Feature Cost:	x100 Bet
RTP:	-
Volatility:	High
Give Me Eight
Feature Cost:	x300 Bet
RTP:	-
Volatility:	High

RTP, Volatility & Max Win in Octo Attack

I rate the Octo Attack maths as friendly for a grinder. The RTP sits at 96.27% on the default setting, volatility is medium at 3/5, and the hit frequency clocks in around 33.96%, so roughly one win every three spins. Stakes range from 0.10 to 100 per spin. The ceiling is a chunky 10,000x max win, reachable in all modes when multipliers meet the right clusters, though my bigger spikes have come from the premium free spins.

Graphics & Audio in Octo Attack

Visually, Octo Attack leans into a monochrome city vibe with splashes of colour on key symbols and Otto's blue scowl. The graffiti-styled art reads clearly on the 6x5 grid, keeping clusters easy to parse during cascades. The audio backs it with bassy thumps and watery flourishes that swell when the tentacle reaches in. I've played on mobile and desktop, and the HTML5 build keeps things crisp, with animations snappy enough to track Ink Stains building across spins.

Gallery of video and screenshots of the game