Discover our complete slot review of Forgotten Island, including all the key features to be aware of, where to play, and other games like this.
Forgotten Island is an adventure-themed video slot developed by the independent Estonian developer All41 Studios, distributed exclusively via the Microgaming (now Games Global) network. Leveraging the immensely popular Megaways engine licensed from Big Time Gaming, this title drops players into a dense, mysterious jungle overseen by a giant, sentient gorilla. While the theme draws undeniable inspiration from cinematic classics like King Kong, the slot carves out its own identity through a unique combination of high volatility, a generous hit frequency, and base game multipliers. This review provides a comprehensive, fact-checked breakdown of the game’s mechanics, features, and overall player experience.
Forgotten Island information
Reels: 6 vertical reels + 1 extra horizontal top reel
Min/Max Bet: £0.20 minimum to £20.00 maximum per spin (Note: Maximum bet limits are subject to casino operator discretion and local regulatory limits).
RTP (Return to Player): 96.25%
Volatility: High
Maximum Win: 7,000x the base stake
Technical Note: The game utilizes the licensed Megaways engine combined with Rolling Reels (cascades). On every spin, the grid dynamically changes size, offering up to 117,649 ways to win. Winning combinations shatter and are replaced by falling symbols. A key technical feature is the base-game “Kong Spin,” which can randomly apply an escalating multiplier to any successful cascade sequence without needing to trigger the main bonus round.
What do users like about Forgotten Island?
Exciting Base Game Potential
Players frequently praise the Kong Spin Feature. In many Megaways slots, the base game can feel like a grind while waiting for the free spins bonus to trigger. In Forgotten Island, the Kong Spin can activate on any winning base game spin, dropping a multiplier of up to 10x that continues to grow with every subsequent cascade. Reviewers highlight that the feature expands on the standard gameplay while increasing the game’s maximum win potential.
High Hit Frequency
Despite being classified as a high-volatility slot, the game boasts a verified hit frequency of 33.66%. This means that, statistically, roughly one in every three spins results in a winning combination. Community feedback highlights that this frequent trickle of small wins keeps the gameplay feeling active and engaging, softening the blow of high-variance dry spells.
Unlimited Bonus Multipliers
The free spins feature operates with an unlimited progressive multiplier. It starts at a base of 2x and increases by 1x with every single cascade. Slot enthusiasts appreciate that there is no arbitrary cap on this multiplier, allowing the payout potential to scale dramatically towards the end of a deep bonus round.
Why Forgotten Island might not be for you
Lower Maximum Win Cap
For a high-volatility Megaways slot, the maximum win potential of 7,000x the stake is somewhat modest. Many competing Megaways titles boast maximum payouts of 20,000x to 50,000x. High-risk jackpot hunters might find this ceiling too restrictive for their preferences.
Narrow Betting Range
The maximum bet is capped at £20.00 per spin. While this is more than sufficient for casual players and mid-stakes gamblers, high rollers who prefer placing wagers of £50 or £100 per spin will find the betting limits too restrictive.
Derivative Theme
If you are looking for an entirely original narrative, Forgotten Island may feel a bit familiar. The visual design, featuring a giant ape, skulls, and jungle ruins, closely mimics existing games like Return of Kong Megaways and King Kong Cash. Players seeking innovative visual themes might find the aesthetic uninspired.
Forgotten Island overview
Forgotten Island Megaways transports players deep into an uncharted tropical jungle, a setting heavily influenced by the mythos of Skull Island. The reels are set against a backdrop of ancient stone ruins, cascading waterfalls, and lush vegetation, with the imposing figure of a giant gorilla standing guard on the left side of the screen.
The game utilizes the Megaways mechanic. On every spin, reels 1 and 6 can display between 2 and 7 symbols, while reels 2, 3, 4, and 5 can display up to 6 symbols (plus an extra symbol on the horizontal top reel). Because the number of symbols changes dynamically, the total ways to win fluctuates per spin, maxing out at 117,649.
Wins are achieved by landing identical symbols on consecutive reels, starting from the leftmost reel. The lower-value symbols consist of standard card royals (9, 10, J, Q, K, A), while the premium symbols are thematic items: grappling hooks, lanterns, ancient books, and the highest-paying gorilla skull symbol, which awards 50x the stake for a six-of-a-kind match.
The overall player experience is highly rhythmic. Thanks to the high hit frequency and cascading reels, the screen is frequently in motion. The dramatic tribal soundtrack and immersive sound design – such as the rumbling rocks and the roar of the gorilla – elevate the tension, making it a standout audio-visual experience within the All41 Studios portfolio.
Forgotten Islands features
Megaways Engine
Licensed from Big Time Gaming, the Megaways system ensures no two spins are exactly alike. By altering the physical size of the symbols on the grid, the game constantly shifts the amount of paylines available. Maxing out the grid to its full 117,649 ways is often the key to generating the game’s largest payouts, as it allows a single symbol to participate in dozens of winning combinations simultaneously.
Rolling Reels (Cascades)
Commonly known as cascading or tumbling reels, the Rolling Reels feature is active on every spin. When a winning combination is formed, the game calculates the payout and then shatters the winning symbols. New symbols drop down from above (or slide in from the right on the top reel) to fill the empty spaces. If this creates a new win, the process repeats. This allows players to achieve multiple consecutive payouts from a single paid wager.
Kong Spin Feature
This is the game’s standout base-game mechanic. On any winning spin during the base game, the slumbering gorilla can awaken and trigger the Kong Spin. A random multiplier of 2x, 3x, 5x, or 10x is immediately applied to the initial win. Crucially, if the Rolling Reels cause a cascade, the multiplier increases by 1x for every successive drop. The feature builds on the base game structure and plays a role in the slot’s overall win potential.
Free Spins Bonus
Landing four Kong Scatter symbols triggers the Free Spins feature, awarding an initial 10 free spins. Every additional Scatter symbol landed on the triggering spin adds +2 extra spins. The bonus round begins with a starting multiplier of 2x. Every time the Rolling Reels trigger a cascade win, this multiplier increases by +1. The multiplier does not reset between spins. Furthermore, landing three or four Scatters on the top horizontal reel during the bonus will retrigger the feature, awarding +3 or +4 extra spins, respectively.
Wilds and Scatters
Wild Symbols: Represented by a compass, Wilds substitute for all regular paytable symbols to help complete winning combinations. In this game, Wilds only appear on the extra horizontal reel at the top of the grid.
Scatter Symbols: Represented by the gorilla (Kong). These are the only symbols that cannot be substituted by the Wild, and they are responsible for triggering the highly lucrative free spins round.
Where to play Forgotten Islands online
Because Forgotten Island Megaways is distributed via the massive Games Global (formerly Microgaming) network, it is widely available at hundreds of licensed online casinos globally, including right here at Betway! Just register a new account or log into an existing one today.
Games like Forgotten Islands
Gonzo’s Quest Megaways (Red Tiger): If the jungle ruins and cascading multipliers appeal to you, this is a must-play. It features “Avalanche” reels with multipliers that grow up to 15x in the free spins round, paired with a medium-high volatility profile.
Primate King (Red Tiger): A highly volatile, beautifully designed jungle slot. It doesn’t use Megaways, but it features a progression system where players collect gold coins to upgrade the gorilla Wild symbol, eventually unlocking stacked, sticky, and multiplier Wilds.
Finally, if you enjoyed reading this review, you can explore even more online casino game reviews with Betway!





















