
| Game provider | Play'n GO |
| Progressive Jackpot | |
| Configurable winlines | |
| Free spins | |
| Autoplay | |
| Quickspin feature | |
| Gamble feature |
| Number of winlines | 20 |
| Layout | 3-3-3-3-3 |
| Min bet | $0.1 |
| Max bet | $60 |
| Release date | May 2026 |
| Last update | 21 Jul 2026 |
Play Manta Mayhem demo slot online for fun. Enjoy free casino games in demo mode on Casino Guru. Expert review included.

Manta Mayhem is a sealife-themed slot with high volatility. It carries an above-average RTP figure (96.2%), and it is a Play'n GO production.
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Manta Mayhem is a slot machine by Play'n GO. According to the number of players searching for it, Manta Mayhem is not a very popular slot. Still, that doesn't necessarily mean that it's bad, so give it a try and see for yourself, or browse popular casino games.
To play for free in demo mode, just load the game and press the 'Spin' button. You can learn more about slot machines and how they work in our online slots guide.
Take a deep dive and explore the beautiful ocean in the stylish sealife-themed slot Manta Mayhem.
Created by Play'n GO, colorful coral reefs, schools of fish, and the occasional devilish manta pop up.
Aquatic-themed slots are well covered these days, given the popularity of titles such as Razor Returns and Fishin' Frenzy, but Manta Mayhem should be warmly appreciated.
Play'n GO has opted for a warm and relaxing classical beat in Manta Mayhem.
Stringed instruments resonate throughout this game, setting the tone for players when they spin the reels.
The graphics are bright and colorful, helping to define the clear, turquoise water.
Tropical fish form the backdrop for the reels, while the gigantic manta watches over proceedings.
The vibrant graphics and relaxing soundtrack help encapsulate the atmosphere of Manta Mayhem well.
Manta Mayhem is configured on a 5-reel, 3-row grid, accompanied by 20 paylines.
Wins are assembled by landing at least 3 matching symbols on reels from left to right.
The orange fish is the more premium regular-paying symbol, granting a return of 10x your wager for a 5-of-a-kind win.
Manta Mayhem comes with two Wilds – a standard Wild substituting for regular symbols, except for Scatters, and Expanding Wilds that can cover an entire reel and trigger modifier boosts.
Each time a clam symbol lands, its pearl is swallowed by the manta above the reels, and this can activate the Free Spins feature. Once triggered, players can pick a clam to reveal the number of Free Spins and Free Spin Boosters:
In the Free Spin boosters, high-paying symbols are stacked on the reels. Sticky Wilds can appear on reels 2, 3, or 4, and a high-paying symbol can transform into a Wild. Here, 2 or 3 random wilds are added on each spin, and wins can carry multipliers of 2x, 5x, or 10x.
Manta Mayhem presents a maximum win of 9,000x your wager.
The Return to Player (RTP) figure available for Manta Mayhem sits above the industry yardstick at 96.2%. Games with a higher RTP provide better long-term value for players as they can, on average, return a higher percentage of wagers over time.
Bets for this title range from $/£/€0.10 to $/£/€60 per spin, making it accessible for players of all budgets.
This game falls into the high volatility category, making it a dream match for our slot machine strategies. Highly volatile games can be rewarding as you can stake small amounts to claim a bigger prize, albeit less frequently.
We think you should give this sealife-themed, highly volatile game a go.
A visual delight, Manta Mayhem may not have the most original selection of features, but the Free Spins with multiple modifiers are a selling point.
The appetite for aquatic-style slots isn't ebbing away, and we're confident players will be hooked by this one.
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