Octo Attack is a cluster pays slot game with a rather unusual theme. The game is set in a largely monochrome world, and the action seems to be taking place near a disused warehouse or a dumpster. Not the most glamorous of settings, and certainly not somewhere you would expect to find an octopus - but here we are. The game has a few special features to look out for, including the Tenta-Grab Mechanic and the Eighth Arm is the Charm bonus game. It has an RTP of 96.27%, and a maximum win of 10,000x your bet. In this Octo Attack slot review I will give you my honest opinion on the game, its bonus features, design, and more.
Octo Attack is a cluster pays slot game. For most of the symbols, wins are achieved by landing five or more matching symbols in a cluster (next to each other either vertically or horizontally).
The minimum bet in this slot game is £0.10 and the maximum bet is £100, making it suitable for players with different budgets. The maximum win is 10,000x your bet.
The RTP of Octo Attack is 96.27%. In case you are not familiar with RTP, it stands for Return to Player, and it is expressed as a percentage that represents the amount of money a slot game will statistically pay out over a long period of time.
There are lots of different online casinos where you can play Octo Attack. Here is my selection of the best UK slot sites:
The Octo Attack slot has a striking, comic book-style design, although much of the screen is in black and grey. The splashes of colour come from the higher-paying symbols on the grid, and they represent things you might find in a dumpster – fish heads, almost-empty cans of beer, mushrooms and radioactive-looking lollies.
Otto the Octopus is another colourful addition to the grid, although he looks quite menacing as he floats up and down to the side of the grid. It’s not clear how he has ended up in the dumpster, but hopefully he can help us to land some wins while he’s there.
Some of the symbols in the game are in monochrome, which I found slightly confusing at first. It turns out that they are simply the lower-paying symbols in the game, while the higher-paying ones are in colour.
There are some Wild symbols in Octo Attack, which can appear in monochrome or with coloured multiplier values overlaid on top. There are also Normal and Epic free spins symbols (Normal are pink and Epic are yellow), which trigger the free spins round when three or more of them appear on the reels.
Ink Stains appear on symbol positions after they have formed part of a win, and the Eye of Otto can randomly appear to transform Ink Stain symbols for a chance to win a prize (more on that later).
But for now, let’s take a look at some of the symbols and payouts. Note that wins are awarded for clusters of five or more symbols, and in this list I have only included payouts for larger clusters:
Orange shark: 15+ = 500x bet / 13 - 25 = 100x bet / 11 -12 = 30x bet
Ice lolly / mushroom (these symbols have the same value): 15+ = 250x bet / 13 - 25 = 50x bet / 11 -12 = 15x bet
Beer can / green fish (these symbols have the same value): 15+ = 150x bet / 13 - 25 = 25x bet / 11 -12 = 7.5x bet
Five grey symbols (all with the same value): 15+ = 100x bet / 13 - 25 = 15x bet / 11 -12 = 5x bet
For the full payout table, click the burger menu (three horizontal lines) at the bottom left of the screen and select ‘Info’.
Octo Attack can be played on desktop, mobile or tablet, and uses HTML5 technology for smooth performance on your chosen device. The slot looks great on smaller screens, with no distortion or loss of quality.
Octo Attack has a few special features to explore. Let’s have a closer look at the bonus features below:
Ink Stains replace winning symbols on the grid after a win, for the next spin only. If the Eye of Otto appears on the grid on the same spin as Ink Stains, a tentacle will lash out and grab one random symbol on the grid (this could include Wilds, Wild Multipliers, Free Spins, high-paying symbols or low-paying symbols). All other Ink Stain positions will be transformed into that symbol.
This bonus is triggered by landing at least three Normal Free Spin symbols. The number of symbols that activates the round equates to the number of free spins you will get. During the bonus game, Ink Stains are not removed until they have formed part of the Tenta-Grab feature. Additional free spins can be won during the bonus.
This feature is very similar to the previous one, except it is triggered by Epic Free Spin symbols rather than normal ones. In this bonus, the Tentra-Grab only grabs Wilds or Wild Multipliers, offering the potential for bigger wins.
Octo Attack is a unique slot game that shows imagination and creativity from the developers. Although the black and grey theme is a little dreary, this is clearly the intention, and the pops of colour help to brighten things up.
The Tenta-Grab mechanic has the potential to lead to some big wins, but if you’re not lucky enough to trigger it you could end up getting a little bored, since there aren’t many other special features except for the free spins.
The game has an RTP of 96.27% and is medium volatility, which means that wins are likely to occur less often than some other games, but they should be bigger wins when they do happen. The maximum win of 10,000x your bet is certainly appealing, and the design of the game definitely makes it stand out from the crowd.
Although it might have been nice to see an additional bonus feature or two, Octo Attack is a unique slot game that will appeal to those looking for something a little different.
Rating: 8.0
Here are some of the most common questions about Octo Attack.