Slots Like Action Boost Gorilla Gems: Three Banana Gem Bonus Rounds and a 5,000x Jackpot Ladder
Action Boost Gorilla Gems is a jungle-themed video slot from SpinPlay Games, running on a 5-reel, 4-row grid with 20 fixed paylines that expand to 40 during one of its bonus rounds. The developer records the RTP at 96.39%, rates the volatility as medium, and sets stakes from £0.20 to £50 a spin. The game’s centrepiece is a set of three coloured Banana Gems, green, red and purple, that collect above the reels as you play and each unlock a completely different free spins mode once enough of that colour lands. Add in a stacked gorilla Wild and a Random Reveal mechanic that can turn blank symbols into paying ones mid-spin, and the maximum win climbs to 5,000x stake. Anyone hunting for slots like Action Boost Gorilla Gems is usually after that combination of a jungle-and-jewels theme with a genuine choice of bonus outcomes rather than a single fixed free spins round.
Where to Play
18+ only. T&Cs apply. Please gamble responsibly.
How the Game Works
Reviewed by Brian TaylorPublished: July 2026
SlotsLike may receive commission from qualifying affiliate visits. Commercial arrangements do not change this Action Boost Gorilla Gems review; gambling is for adults aged 18 and over.
Action Boost Gorilla Gems drops its reels into a dense, sunlit jungle clearing, with vines and a waterfall in the background and a silverback gorilla glaring out from behind the grid. The 5×4 layout keeps 20 fixed paylines active from the first spin, so the paytable tells you exactly what a winning line looks like without any separate ways-to-win chart to check.
Three gem-shaped meters sit above the reels, one green, one red and one purple, and they fill up as matching Banana Gem symbols land during ordinary play. This is the mechanic that sets Action Boost Gorilla Gems apart from a typical jungle slot: rather than a single scatter triggering one fixed bonus, the colour of gem you collect fastest decides which of three distinctly different free spins modes you get sent into. A cautious session can tick along on base game line wins while the meters slowly fill, while a livelier one can trigger a mode within a handful of spins.
A stacked gorilla Wild appears on all five reels and substitutes for every regular paying symbol, while a Random Reveal mechanic occasionally drops a blank, question-mark style symbol into the grid that flips over once the reels stop, becoming either a paying symbol or the Wild itself. It adds a small extra beat of anticipation to spins that would otherwise have missed.
Symbols and Paytable
The lower end of the paytable uses playing-card royals, 9, 10, J, Q, K and A, each rendered in a jungle-vine font and paying a modest return for five matching symbols on an active line. Above them sit three jungle animals, a coiled cobra, a crocodile and an elephant, each worth more than the card symbols as the value climbs. The stacked gorilla Wild sits at the top of the regular paytable and substitutes for anything on that list, though it cannot replace the Banana Gem collection symbols. Exact pay figures move a little with the active bet, so the in-game paytable at your chosen stake is the number to trust over any third-party listing.
Bonus Features Explained
Random Reveal Symbols
On certain spins, one or more grid positions land as a blank, mystery-marked tile instead of a normal symbol. Once the reels stop, each Random Reveal tile flips to show either a regular paying symbol or the gorilla Wild, occasionally turning what looked like a losing spin into a winning line at the last moment. It is a small, frequent-touch feature rather than a headline bonus, but it keeps the base game from feeling static between the bigger Banana Gem triggers.
The Three Banana Gem Free Spins Modes
Green, red and purple Banana Gem symbols land during normal play and collect in meters above the reels. Filling a meter sends you into that colour’s own free spins round, and the three modes play very differently from one another.
Green Banana: Expanding Grid Free Spins
The Green Banana mode expands the reel set from four rows to six and doubles the active paylines from 20 to 40 for the duration of the round, with nudging Wilds active to help push winning combinations into place. It is the mode built for volume, giving the most grid space and the most ways for a stacked Wild to complete a line.
Red Banana: Jewel Collection Jackpots
The Red Banana mode hands out free spins in which coloured jewels drop onto the reels and collect toward one of four fixed jackpot prizes. Three green jewels award the Mini jackpot of 10x stake, four blue jewels award the Minor jackpot of 50x stake, five purple jewels award the Major jackpot of 500x stake, and six red jewels award the Mega jackpot, the game’s top prize of 5,000x stake. This is where Action Boost Gorilla Gems’ headline maximum win actually lives.
Purple Banana: Multiplier Free Spins
The Purple Banana mode keeps the base 5×4 grid and 20 paylines in place but adds a random multiplier, between 2x and 5x, to line wins on any spin during the round. It trades the bigger grid of the Green mode and the fixed jackpots of the Red mode for a simpler, multiplier-driven free spins round.
Wild Symbol
The stacked gorilla Wild appears across all five reels and substitutes for every card and animal symbol in the base paytable. It cannot replace the Banana Gem collection symbols, so a strong Wild stack does nothing to speed up which free spins mode triggers next.
Pros and Cons
Pros
- Three genuinely different free spins modes give the game more variety than a single fixed bonus round
- The Red Banana jewel-collection jackpots make the 5,000x maximum win a concrete, trackable target rather than an abstract paytable figure
- Random Reveal Symbols add a small extra chance of a win on spins that would otherwise miss completely
- Medium volatility and a £0.20 minimum stake keep it approachable across a wide range of budgets
- 20 fixed paylines make the base paytable easy to read next to a ways or cluster structure
Cons
- Which free spins mode you get depends on which gem colour fills first, so there is no way to deliberately choose the Red Banana jackpot round
- The Green Banana grid expansion and Purple Banana multiplier feel like smaller prizes next to the Red Banana jackpot ladder, which can be a let-down if they trigger instead
- A 5,000x ceiling is respectable but sits behind some newer high-volatility releases with five-figure multipliers
- The jungle-and-jewels theme is a crowded space, with several gorilla-themed slots already covering similar ground
- Medium volatility means any one Banana Gem meter can take a fair number of spins to fill
Game Screenshot
Demo Play
Game Information
The embedded Slots Launch build above is tied to the synced record for Action Boost Gorilla Gems. Regional, age and provider restrictions can still prevent Action Boost Gorilla Gems from loading, and its simulated credits have no cash value.
Expert Take
Action Boost Gorilla Gems works best for players who like a genuine sense of variety in their bonus rounds rather than the same free spins shape every time a scatter lands. Splitting the payout structure across three colour-coded gem meters means a session can end up leaning toward grid expansion, a straightforward multiplier boost, or a shot at the fixed jackpot ladder, and which one you get is part of the appeal rather than a flaw, even if it also means the 5,000x prize is not something you can aim for directly.
The honest caveat is that the jungle theme itself is well trodden. Gorilla-and-banana slots are a crowded shelf, and Action Boost Gorilla Gems leans on SpinPlay Games’ mathematics-first design rather than a particularly novel visual identity to stand out. Players who already enjoy multi-path free spins structures, in the mould of Rainbow Riches’ three separate bonus symbols, will likely find the Banana Gem system a satisfying variation on that idea. Medium volatility keeps sessions from swinging too wildly, which makes this a solid pick for anyone who wants theme familiarity with a genuinely different bonus engine underneath it.
Similar Slots to Try
The Action Boost Gorilla Gems comparisons below split by theme and by mechanic, so each pick has a clear reason to sit alongside it.
Blueprint Gaming’s own giant-ape slot, built around collecting bananas toward a jackpot wheel rather than a colour-coded free spins split.
A Betsoft jungle release with expanding Wilds and a bonus wheel, useful for comparing a simpler single-path bonus structure.
Blueprint’s Megaways take on the theme, trading fixed paylines for up to 117,649 ways and a higher recorded RTP.
A 1,024-ways gorilla release with Improving Symbols and Free Spins, a useful comparison for a game without a jewel-collection jackpot.
About the Developer
SpinPlay Games is a Las Vegas-founded slot developer established in 2019 by Anton Kuhlmann and Serena Petersen, built around a mathematics-first design philosophy where payout structures are worked out before a game’s theme or artwork is chosen. It distributes its slots through an exclusive partnership with Games Global, giving it access to UKGC and MGA-licensed markets, and works alongside a sister studio, AreaVegas Games, on some releases. Action Boost Gorilla Gems is the third SpinPlay Games title added to SlotsLike, joining the studio’s Amazing Link hold-and-respin series, and it forms part of a wider Action Boost line that includes Action Boost Gladiator and Action Boost Tiki Treasures, neither reviewed here yet. SpinPlay’s catalogue runs to somewhere between 58 and 79 released titles depending on the tracker, a deliberately compact portfolio next to some of the larger studios on this site.
A Western-themed entry in SpinPlay’s signature Amazing Link hold-and-respin series.
A Greek mythology entry in the same hold-and-respin family, built around the studio’s linked-symbol mechanic.
Released under SpinPlay’s sister studio AreaVegas Games, useful context for the wider Vegas studio group.
Action Boost Gorilla Gems Key Stats
Action Boost Gorilla Gems slot information last reviewed: July 2026.
| Action Boost Gorilla Gems Slot Info | |
|---|---|
| Name | Action Boost Gorilla Gems |
| Provider | SpinPlay Games |
| Developer Rank | Third SpinPlay Games title added to the site; a mid-tier developer by catalogue size (58 to 79 titles depending on tracker) rather than a large-volume studio |
| RTP | 96.39% |
| RTP Category | Medium-High |
| RTP Rank | 615 |
| Feature Description | Random Reveal Symbols can transform into paying icons or the gorilla Wild, while collecting green, red or purple Banana Gems above the reels triggers one of three free spins modes: an expanding 6-row, 40-payline grid, a jewel-collecting jackpot round worth up to 5,000x, or a random 2x to 5x win multiplier. |
| Feature Categories | Mystery Symbol, Multiple Bonus Modes, Jackpot Collection, Free Spins |
| Reels | 5 |
| Rows | 4 in the base game, expanding to 6 during Green Banana free spins (one tracker instead lists a 5×3 base grid, but the majority of sources and the free spins expansion language agree on 5×4, so that is the figure used here) |
| Paylines | 20 fixed paylines, doubling to 40 during Green Banana free spins |
| Volatility | Medium |
| Volatility Rank | 455 |
| Min Bet | £0.20 |
| Max Bet | £50 |
| Max Win | 5,000x stake |
| Release Date | 21 February 2023 (following a narrower exclusive release on 8 February 2023) |
| Slotslike Rank | 1,780 (View Top 100) |
Slots with the Same Features
These Action Boost Gorilla Gems alternatives are grouped by mechanic rather than artwork, so the maths should already feel familiar.
Jackpot Collection Slots
These games share the idea of collecting symbols toward a fixed jackpot ladder, the same structure behind the Red Banana mode here.
Another banana-collection jackpot slot, this one built around Blueprint’s Jackpot King progressive network instead of fixed prize tiers.
A gold-rush themed jackpot collection slot, worth a look for a non-jungle setting on a similar collect-to-win idea.
Multiple Free Spins Modes
These games share the idea of splitting their bonus round into more than one distinct path rather than a single fixed free spins format.
The classic example of the format, three separate bonus symbols each leading to a completely different feature.
Combines a separate Free Spins bonus with its own Jackpot King wheel, another take on giving a game more than one bonus outcome.
Frequently Asked Questions
How does the bonus work in Action Boost Gorilla Gems?
Green, red and purple Banana Gem symbols collect in meters above the reels as you play. Filling one meter triggers that colour’s free spins mode: Green expands the grid to 6 rows and 40 paylines with nudging Wilds, Red hands out jewel-collection free spins toward four fixed jackpots up to 5,000x stake, and Purple adds a random 2x to 5x multiplier to every win during the round.
What is the RTP of Action Boost Gorilla Gems?
SpinPlay Games lists Action Boost Gorilla Gems at 96.39% RTP, which places it in the medium-high band on this site. As with most slots, some operators can run reduced RTP configurations, so the in-game help screen is the place to confirm the exact figure in play.
What is the maximum win in Action Boost Gorilla Gems?
The top prize is 5,000x stake, paid out through the Red Banana free spins mode when six red jewels are collected for the Mega jackpot. That figure is also the highest tier on the paytable, so there is no separate, larger jackpot hiding elsewhere in the game.
How volatile is Action Boost Gorilla Gems?
SpinPlay Games rates Action Boost Gorilla Gems as medium volatility, with a hit frequency of roughly 36.6%, meaning a little more than one in three spins produces some kind of win. The three Banana Gem free spins modes still take a meaningful run of spins to trigger.
What are the best slots like Action Boost Gorilla Gems?
King Kong Cash is the closest thematic match, since it also builds a jackpot feature around collecting bananas. Gorilla Go Wild, Gorilla Gold Megaways and Gorilla Kingdom cover the wider gorilla theme if the exact mechanic matters less to you than the setting, while Rainbow Riches is the classic reference point for a game split across multiple distinct bonus symbols.
Can I play Action Boost Gorilla Gems for free?
Yes, a demo build is embedded further up this page through the Slots Launch widget, subject to age and location restrictions. Credit used in the demo has no cash value and cannot predict the outcome of a later real-money spin.
Who makes Action Boost Gorilla Gems?
SpinPlay Games, a Las Vegas-founded developer established in 2019 and distributed through an exclusive partnership with Games Global, released Action Boost Gorilla Gems in February 2023. It is the third SpinPlay Games title reviewed on SlotsLike.
Can I choose which Banana Gem free spins mode I get?
No. Whichever colour meter, green, red or purple, fills first is the mode you play, so there is no way to deliberately steer a session toward the Red Banana jackpot round over the other two.
Our Verdict on Action Boost Gorilla Gems
Action Boost Gorilla Gems earns its place through genuine structural variety: splitting the bonus round across three differently shaped free spins modes gives the game more to offer than a single fixed feature, and the Red Banana jewel ladder makes the 5,000x top prize feel like a real, trackable target rather than an abstract number on the paytable. The Random Reveal Symbols add a nice extra touch to ordinary base game spins, and the jungle presentation is well executed even if the theme itself is far from original. The honest drawback is that you cannot choose your bonus mode, so a session that keeps filling the Purple meter over the Red one will feel comparatively flat, and the gorilla-and-banana setting is already well covered elsewhere on this site. Medium volatility and a fair stake range make it an easy game to slot into a session regardless. On balance, a solid 7.4 feels right, rewarding the three-mode structure while acknowledging the theme’s familiarity.
SlotsLike rating: 7.4/10