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Reviewing the Octo Attack Online Slot

latimer
latimer Updated: 07.05.2025 20:14
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Understanding the Octo Attack Game

Octo Attack is a video game where Earth faces an invasion by creatures with eight arms. The main character is a friendly octopus named Otto, who provides bonuses and special abilities. Despite the game’s atmosphere, filled with debris and gray colors, Otto includes aspects that brighten the reels with multipliers and wilds, offering a chance to win up to 10,000 times the stake. Consider exploring various slot rating information to compare different game experiences.

Game grid with 6 reels and 7 rows.
Main game view

Octo Attack is a video slot with a 6 reel, 7 row structure. It uses a Cluster Pays system; wins occur when 5 or more matching symbols connect. Bets range from 0.1 to 100. The game has medium volatility and a 96.27% RTP. The largest possible win is 10,000 times the wager.

Octo Attack features a monochrome look and mechanics that provide gameplay. Game mechanics include: multiplier symbols, ink stains, Otto’s Eye, tenta-grabs, Eight Arm Is The Charm spins, Give Me Eight! spins, and a buy option.

Information about the Octo Attack Slot

The game takes place in a city left deserted, with streets covered in refuse. Otto might be involved. Otto stays next to the play area while arcade sounds play. A noticeable aspect is the color scheme, or lack thereof. The game uses a monochrome style, with only some symbols and Otto having color. The game works on most computers, phones, and tablets. Wins form when 5 or more identical symbols land in a group.

Symbols paying less show gray graffiti: a fishing hook, lightning bolt, speech bubble, cube, and heart. A win with 26 or more brings 100 times the bet. Symbols paying more are colored refuse: a fish skeleton, beer can, mushroom, ice cream, and a shark smiling. Wild symbols with multipliers, Scatters, Epic Scatters, and Otto himself can also land. More on these follows.

Octo Attack Slot Game Mechanics

What is the largest win in Octo Attack?

The largest possible win is 10,000 times the bet.

What mechanics are in Octo Attack?

The game includes: Multiplier Wild symbols, Ink Stains, Eye of Otto and Tenta-Grab, Eight Arm Is The Charm spins, Give Me Eight! spins, and Feature Buy.

Win display during free spins.
Free spins display

Free Spins

Multiplier Wild Symbol

Wild symbols help form win groups by standing in for all symbols except Scatter and Epic Scatter symbols. Wilds may also appear with a random multiplier from 1X to 10X.

Ink Stains

When a win forms, the symbols involved disappear, leaving ink marks behind. New symbols then drop from above to fill the empty spaces. This action continues until no more win groups appear. Ink stains clear between spins or after a Tenta-Grab action.

Otto’s Eye and Tenta-Grab

Otto’s Eye symbols trigger the Tenta-Grab action when they land on a spot with an Ink Stain. When triggered, a tentacle randomly picks one symbol on the grid and replaces all spots with Ink Stains with that chosen symbol. You can play slot games like this on compatible sites.

Eight Arm Is The Charm Spins

These activate when 3 or more Scatter symbols land in one spin. The number of starting spins equals the number of Scatter symbols that landed. During these spins, ink stains do not clear between spins until the Tenta-Grab action is used, which clears all saved ink stains.

Give Me Eight! Spins

This activates when 3 or more Epic Scatter symbols land in one spin. The number of initial spins matches the number of Scatter symbols that landed. During this mode, ink stains do not reset between spins until used by the Tenta-Grab action. Tenta-Grabs can only grab Wild or Wild Multiplier symbols.

Menu showing 4 buy options.
Buy options menu

Feature Buy

Special Feature Purchase

The game offers a way to buy special mechanics straight from the main screen. Options available include:

3X = Starts BonusHunt FeatureSpins, where the chance of landing a bonus game is 5 times higher each spin.

50X = Launches Tentacular FeatureSpins, ensuring at least one win and an Otto’s Eye symbol appears on every spin.

100X = Activates Eight Arm Is The Charm spins.

300X = Starts Give Me Eight! spins. To find places offering this game, search for where to play slot games online.

F.A.Q.

What type of game is Octo Attack and what is its core theme?

Octo Attack is a video slot game set in a world facing an invasion by creatures with eight arms, providing a somewhat grim, post-apocalyptic backdrop of a deserted city filled with refuse. The central character, however, is Otto, a friendly octopus who contrasts with this dark setting by offering various bonuses and special abilities that brighten the reels. Despite the prevalent monochrome visual style dominated by debris and gray colors, Otto's features like multipliers and wilds aim to add excitement and color to the gameplay experience. The game blends a darker, invasion-themed atmosphere with the potential for high wins and engaging mechanics introduced by its cheerful octopus protagonist.

How does the winning system work in Octo Attack, and what are the game's basic statistics?

Octo Attack utilizes a Cluster Pays system on a 6-reel, 7-row grid. Wins are achieved by landing a cluster of five or more identical symbols that are connected horizontally or vertically. The game accommodates a wide range of players with a flexible betting scale from 0.1 to 100. It is classified as having medium volatility, offering a balanced gameplay experience with a mix of win sizes and frequencies. The game's theoretical Return to Player (RTP) is stated as 96.27%. Players have the opportunity to secure a substantial maximum win, potentially reaching up to 10,000 times their initial wager on a single spin.

What are the main special features or mechanics present in the Octo Attack slot?

The Octo Attack slot is rich in special features and mechanics designed to enhance gameplay and winning potential. Key features include Multiplier Wild symbols, which can substitute for other symbols (except Scatters) to form winning clusters and may carry multipliers up to 10X. The game incorporates an Ink Stains mechanic where winning symbols vanish, leaving behind marks. This ties into the Otto's Eye and Tenta-Grab features, where an Otto's Eye landing on an ink stain triggers a tentacle to replace all ink stains with a single chosen symbol. Furthermore, there are two distinct Free Spins modes: Eight Arm Is The Charm spins and Give Me Eight! spins, activated by different Scatter symbols. The game also offers a Feature Buy option for direct access to certain bonus mechanics.

Can you describe the Ink Stains and Tenta-Grab features and how they interact?

The Ink Stains feature is triggered whenever a winning cluster occurs. The symbols involved in the win disappear, and their positions are marked with "Ink Stains". New symbols then cascade from above to fill these empty spots, allowing for potential chain reactions of wins within a single spin sequence. In the base game, these ink stains clear before the next spin begins. The Otto's Eye symbol interacts specifically with these stains. When an Otto's Eye symbol lands on any position that contains an Ink Stain, it activates the Tenta-Grab action. During a Tenta-Grab, one symbol from the grid is randomly selected by a tentacle, and then all positions currently marked with Ink Stains are filled with that chosen symbol, which can lead to new winning clusters being formed based on the distribution of the chosen symbol.

How do the two types of Free Spins, Eight Arm Is The Charm and Give Me Eight!, differ?

Octo Attack features two distinct Free Spins modes, each with unique activation requirements and mechanics regarding Ink Stains. The "Eight Arm Is The Charm" spins are initiated by landing three or more standard Scatter symbols anywhere on the reels, with the initial number of spins corresponding to the count of triggering Scatters. In this mode, Ink Stains created by wins persist and do not clear between spins until a Tenta-Grab action is triggered, which then clears all accumulated stains. The "Give Me Eight!" spins are activated by landing three or more Epic Scatter symbols (the text mentions Scatters, but implies Epic Scatters based on context). Like the first mode, ink stains also remain between spins until a Tenta-Grab is used. The key difference is that during "Give Me Eight!" spins, the Tenta-Grab action is specifically designed to only select and replace Ink Stains with either Wild or Multiplier Wild symbols, potentially leading to more valuable symbol clusters being formed on the grid.

Are there options to buy access to special features in Octo Attack?

Yes, Octo Attack includes a Feature Buy menu that allows players to directly purchase access to specific bonus mechanics and feature spins without having to wait for them to trigger naturally during gameplay. These options are priced as multiples of the current bet. Players can buy BonusHunt FeatureSpins for 3X the bet, which significantly increases the chance of triggering a bonus game on subsequent spins. For 50X the bet, Tentacular FeatureSpins can be purchased, guaranteeing at least one win and an Otto's Eye symbol appearance on every spin. Direct entry into the "Eight Arm Is The Charm" free spins is available for 100X the bet, while the higher-tier "Give Me Eight!" free spins, which can only place Wilds/Multiplier Wilds during Tenta-Grab, can be bought for 300X the bet. This allows players to jump directly into high-action parts of the game.
Experts
Rupert Latimer
Rupert Latimer resides in Leeds where he's built a reputation for his in-depth analysis of slot game mechanics and casino offerings. His investigative pieces on gambling regulation have been widely cited in industry publications. When not writing, he can be found researching upcoming game releases and market developments.
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