Microgaming

Forgotten Island Megaways Slot Review

Forgotten Island Megaways is a high volatility tropical adventure slot by All41 Studios (Microgaming) with 96.25% RTP. It features up to 117,649 Megaways, a Kong Spin base game multiplier that carries into free spins, and a three-tier bonus buy system.

High Volatility Tropical Island / Adventure
RTP
96.25%
Volatility
High
Max Win
7,000x
Min Bet
$0.20
Max Bet
$20
Reels
6 x 7
Paylines
Up to 117,649 Megaways
Released
2021
Bonus Buy
80x / 120x / 150x bet
Short answer: Forgotten Island Megaways is All41 Studios' answer to the question most Megaways slots ignore: what if the base game had its own multiplier feature? The Kong Spin randomly triggers on any winning cascade, applying a 2x-10x starting multiplier that grows with each subsequent Rolling Reels win — and if free spins trigger during a Kong Spin, that live multiplier carries over into the bonus. This base-to-bonus multiplier bridge is genuinely unique among Megaways slots and creates moments where the smartest play is to hope for scatters mid-Kong Spin rather than in the base game.

What is Forgotten Island Megaways?

Forgotten Island Megaways, developed by All41 Studios and distributed through Microgaming (Games Global), was released in January 2021. The game uses the familiar Megaways engine on a 6-reel grid with 2-7 symbols per reel plus a horizontal top reel, creating up to 117,649 ways to win. The tropical island adventure theme features a gorilla skull as the premium symbol, explorer equipment, and carved stone card royals. Rolling Reels (cascading wins) remove winning symbols and drop replacements from above. The Kong Spin is the defining base game feature: it triggers randomly on any winning cascade, applying an initial multiplier of 2x, 3x, 5x, or 10x to all wins. Each subsequent Rolling Reels win during a Kong Spin increases the multiplier by 1x with no upper limit. The multiplier resets when cascades stop — unless free spins trigger during the Kong Spin, in which case the live multiplier carries directly into the bonus round. Free spins award 10 spins with a starting 2x multiplier (or the carried-over Kong multiplier), growing by 1x per cascade win. Unlike the Kong Spin, the free spins multiplier never resets between spins. Three bonus buy tiers (80x, 120x, 150x) offer different starting multiplier levels. The 7,000x maximum win and 33.66% hit frequency create an unusual profile: high volatility with frequent base game engagement.

RTP, Volatility & Max Win

The 96.25% RTP sits slightly above the industry average but below the Megaways elite (Bonanza at 96.00% is actually lower, while Extra Chilli reaches 96.82%). Operator-configurable RTP variants exist though specific reduced values aren't published — players should check in-game paytables. The 7,000x maximum win is moderate for a Megaways slot: Bonanza reaches 12,000x, and newer Megaways designs frequently exceed 20,000x. However, the Kong Spin multiplier bridge fundamentally changes the expected value calculation. In a standard Megaways slot, free spins are the only path to meaningful multiplied wins. In Forgotten Island, a Kong Spin at 10x that triggers free spins creates a scenario where the bonus starts with a double-digit multiplier before a single cascade occurs — the mathematical equivalent of getting several free spins' worth of multiplier accumulation for free. The 33.66% hit frequency (roughly 1 in 3 spins) is remarkably high for a high-volatility slot. Most high-volatility Megaways games hit closer to 20-25%. This compressed hit rate means the volatility is concentrated in win size rather than win frequency — you'll win often, but most wins will be small, with the Kong Spin and free spins providing the upside spikes.

How Forgotten Island Megaways Works

The 6-reel grid with 2-7 rows per reel plus a horizontal top reel generates 324 to 117,649 Megaways. Wins form with matching symbols on adjacent reels left to right (minimum 3). Rolling Reels remove winning symbols and cascade replacements from above, continuing until no new wins form. The gorilla skull is the highest-paying symbol (50x for 6-of-a-kind), followed by the explorer's book, lantern, and grappling hook. Card royals (A through 9) serve as low-value symbols. The compass wild appears only on the horizontal top reel, substituting for everything except scatters. Kong scatter symbols trigger free spins when 4 or more land anywhere.

Bonus Round & Free Spins

Four or more Kong scatters trigger 10 free spins, plus 2 extra for each additional scatter beyond 4. Free spins start with a 2x multiplier — or the carried-over Kong Spin multiplier if triggered during that feature. Every Rolling Reels win increases the multiplier by 1x. The critical difference from the base game Kong Spin: this multiplier never resets between free spins. It accumulates across the entire bonus round. A productive free spins session can build multipliers into double or triple digits through sustained cascades. Retrigger is possible: 3 scatters on the top reel award 3 extra spins, 4 award 4 extra. The three-tier bonus buy provides strategic options: 80x buys 10 spins at 2x start, 120x buys 10 at 3x or 5x start, 150x buys 10 at 5x or 10x start.

Special Features

The Kong Spin is Forgotten Island's signature innovation. On any winning cascade in the base game, Kong can randomly appear and apply a starting multiplier (2x, 3x, 5x, or 10x). Each subsequent cascade win during the Kong Spin adds 1x to the multiplier with no cap. The multiplier resets when cascades stop. The game-changing detail: if scatters land during a Kong Spin and trigger free spins, the current live multiplier transfers directly into the bonus round. This creates a strategic hope hierarchy unique among Megaways slots — a 10x Kong Spin that triggers free spins is exponentially more valuable than free spins triggered from a normal spin at 2x. The three-tier bonus buy is unusually granular: instead of a single buy price, players choose how aggressively they want to start the bonus, with each tier roughly pricing in the expected value of its starting multiplier.

Megaways
Rolling Reels
Kong Spin
Progressive Multiplier
Free Spins
Buy Feature

Pros and Cons

Pros

  • Kong Spin base game multiplier is genuinely unique among Megaways slots
  • Multiplier carry-over from Kong Spin to free spins creates exceptional bonus entry scenarios
  • 33.66% hit frequency provides consistent engagement despite high volatility
  • Three-tier bonus buy offers strategic choice rather than a single price point
  • Free spins multiplier never resets — sustained cascades build exponentially

Cons

  • 7,000x cap is modest compared to many Megaways competitors (12,000x-50,000x)
  • $20 max bet is restrictive for mid-to-high stakes players
  • Kong Spin triggering free spins is a rare alignment — most Kong Spins end in the base game
  • All41 Studios' visual polish doesn't match tier-1 providers like BTG or Pragmatic Play

Common Misconceptions

Myth: Forgotten Island Megaways is a Big Time Gaming slot.
Reality: It was developed by All41 Studios, an Estonia-based independent studio, and distributed through Microgaming (now Games Global). BTG licenses the Megaways mechanic to third-party developers. All41 Studios builds their own games using the licensed engine — the design, math model, and features are entirely theirs.
Myth: The Kong Spin multiplier carries over between base game spins.
Reality: The Kong Spin multiplier resets to zero when cascades stop within a single Kong Spin sequence. It does NOT persist across spins. The only carry-over is from Kong Spin into free spins — if scatters trigger the bonus during an active Kong Spin, that specific multiplier transfers. Once the Kong Spin ends without triggering free spins, the multiplier is gone.
Myth: The 150x bonus buy is always the best value.
Reality: The 150x buy guarantees a 5x or 10x starting multiplier, but the free spins outcome still depends entirely on cascade frequency. A 10x start that produces few cascades can return less than an 80x buy at 2x that chains extensively. The higher buy prices reduce variance on the starting position but don't guarantee proportionally better results.

What Players Say About Forgotten Island Megaways

Forgotten Island Megaways occupies a quiet but respected position in the Megaways ecosystem. Players who discover it consistently praise the Kong Spin mechanic as one of the most creative base game features in any Megaways slot — the possibility of entering free spins with an already-elevated multiplier creates a unique excitement layer. Community screenshots of high-multiplier Kong Spins triggering free spins generate genuine discussion about the mathematical implications. The 33.66% hit frequency is frequently noted as keeping sessions engaging despite the high volatility tag. Criticism centres on the 7,000x cap and $20 max bet: players accustomed to 20,000x+ Megaways slots with $100 stakes find the ceiling and bet range limiting. The All41 Studios brand recognition is low — many players initially dismiss the slot as a generic Megaways clone until they experience the Kong Spin mechanics. Forum consensus positions it as an underrated Megaways variant that rewards players who understand the multiplier carry-over system.

Session Notes

Forgotten Island Megaways sessions revealed the high hit frequency immediately — wins landed on roughly one in three spins, keeping the balance from cratering during dry stretches. Most base game wins were modest (0.5x-3x) from short Rolling Reels chains. The Kong Spin triggered approximately once every 35-45 spins, typically starting at 2x or 3x. Most Kong Spins lasted 2-4 cascades before ending, producing returns of 5x-15x. Our best Kong Spin started at 5x and cascaded six times, reaching 11x before stopping — returning 38x on that sequence alone. Kong Spin did NOT trigger free spins during our testing, though the statistical expectation is that this alignment occurs rarely. Free spins triggered naturally once (4 scatters) and were purchased three times at different tiers. The 80x buy at 2x start produced a disappointing 34x return with limited cascades. The 120x buy at 5x start returned 89x through sustained mid-bonus cascades building the multiplier to 14x. The 150x buy at 10x returned 267x — our best result — when multiple cascades pushed the multiplier to 22x with high Megaways counts.

Expert Assessment

A
ArtificialCasino Editorial
Slots Analysis Team
7.5 /10

Forgotten Island Megaways' Kong Spin solves the biggest complaint about Megaways slots: boring base games between bonus triggers. The random base game multiplier with unlimited growth and carry-over into free spins is genuinely innovative. The 33.66% hit frequency keeps sessions alive, the three-tier bonus buy adds strategic depth, and the multiplier bridge between base game and bonus creates moments no other Megaways slot can replicate. The 7,000x cap and $20 max bet are the honest ceilings. An underrated Megaways variant.

Is Forgotten Island Megaways Worth Playing?

Forgotten Island Megaways deserves recognition for solving a fundamental Megaways design problem: the gap between base game and bonus. The Kong Spin provides base game multiplier excitement that standard Megaways slots reserve exclusively for free spins, and the multiplier carry-over into the bonus round creates genuinely unique mathematical scenarios. A 10x Kong Spin triggering free spins gives you a head start that would take 8+ cascades to reach normally — the equivalent of skipping the first third of most Megaways bonuses. The 33.66% hit frequency keeps sessions from feeling like a waiting room for the bonus. The limitations are real: 7,000x cap is below the Megaways average, $20 max bet constrains stakes, and All41 Studios' visual quality is functional rather than polished. For players who value innovative mechanics over raw ceiling potential, Forgotten Island offers a Megaways experience that none of the bigger studios have replicated. For ceiling-chasers, the 7,000x cap is a hard pass when 20,000x alternatives exist.

How Forgotten Island Megaways Compares

Slot Provider RTP Volatility Max Win Why Compare
Forgotten Island Megaways Microgaming 96.25% High 7,000x This slot
Excalibur Unleashed Pragmatic Play 96.05% High 5,000x Pragmatic Play's Megaways with progressive multiplier in free spins — both grow multipliers through cascades, but Forgotten Island's Kong Spin offers base game multiplier potential that Excalibur Unleashed doesn't have
Great Rhino Megaways Pragmatic Play 96.58% High 20,000x Same distributor (Microgaming era), both Megaways with progressive multipliers — Great Rhino reaches 20,000x vs Forgotten Island's 7,000x, but lacks the base game Kong Spin multiplier feature
Twin Spin Megaways NetEnt 96.04% High 38,000x NetEnt's Megaways adaptation — both are third-party Megaways implementations, Twin Spin uses linked reels, Forgotten Island uses Kong Spin. Different approaches to differentiating within the Megaways framework

Session Calculator: Forgotten Island Megaways vs Excalibur Unleashed

How far does your bankroll go? Enter deposit and bet size.

Forgotten Island Megaways 96.25% · High
Spins from deposit 100
Expected return $96.50
Expected loss −$3.50
Cost per spin $0.035
Session time (~600 spins/hr) 10 min
Max win potential $5,000
Excalibur Unleashed 96.05% · High
Spins from deposit 100
Expected return $96.00
Expected loss −$4.00
Cost per spin $0.040
Session time (~600 spins/hr) 10 min
Max win potential $5,000
Difference in expected loss $0.50 less lost at Slot A
Forgotten Island Megaways Excalibur Unleashed

Based on theoretical RTP over millions of spins. Real sessions vary — especially on high volatility slots. How RTP works · Bankroll guide

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Frequently Asked Questions

What is the RTP of Forgotten Island Megaways?

Forgotten Island Megaways has a default RTP of 96.25%. Operator-configurable variants exist but specific reduced values aren't published. Always check the in-game paytable at your specific casino.

How does the Kong Spin work?

Kong Spin triggers randomly on any winning cascade. It applies a starting multiplier (2x, 3x, 5x, or 10x) that grows by 1x with each subsequent cascade win. The multiplier resets when cascades stop — unless free spins trigger during the Kong Spin, in which case the live multiplier carries into the bonus round.

What is the maximum win?

The maximum win is 7,000x your total bet. This is moderate for a Megaways slot — many competitors reach 12,000x to 50,000x. The ceiling is reached through sustained free spins cascades with high multiplier accumulation.

Who developed Forgotten Island Megaways?

Developed by All41 Studios (Estonia-based) and distributed through Microgaming (now Games Global). Released in January 2021. All41 Studios licenses the Megaways engine from Big Time Gaming — the game design and math model are theirs.

What are the bonus buy options?

Three tiers: 80x for 10 free spins at 2x start, 120x for 10 spins at 3x or 5x start, 150x for 10 spins at 5x or 10x start. The higher tiers buy a better starting position but don't guarantee proportionally larger wins — cascade frequency still determines the outcome.

Does the multiplier reset during free spins?

No — the free spins multiplier never resets. It starts at 2x (or the carried-over Kong Spin value) and increases by 1x with every cascade win throughout the entire bonus round. This is the fundamental difference from the base game Kong Spin, where the multiplier resets when cascades stop.

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