NetEnt · Released 2025 · high volatility
Released
Sept 25
Volatility
high
Reel
6x4
Paylines
262144
RTP
96.06
Min bet
0.3
Max bet
300
Max win
15,825
Gonzo's Quest II: Return to El Dorado brings one of NetEnt's most recognisable characters back for a proper sequel rather than another simple reskin. Released on 25 September 2025, it starts on a 6x4 grid that can expand to 6x8, increasing the number of Ways to Win all the way to 262,144. NetEnt lists high volatility, a maximum win of 15,825x the stake and a headline RTP of 96.06%, with lower 94.15%, 92.13% and 88.10% configurations also available.
The original Gonzo's Quest became famous for its Avalanche mechanic, so wisely NetEnt hasn't thrown that away. Winning symbols disappear, new ones fall into place and another win can continue the sequence. This time, however, every successful Avalanche also adds another row to the grid, up to four additional rows, while increasing the win multiplier.
There's considerably more going on around it too. Calamity Wilds explode and add additional Wilds, Colossal Symbols can occupy areas as large as 4x4, Random Wilds can transform those giant symbols into equally enormous Wilds and Free Spins keep expanded rows between spins rather than resetting the grid.
Then there's Super Free Spins, where Colossal Scatters determine stronger starting multipliers and faster multiplier progression. NetEnt has even included five different Elevate options for players in jurisdictions where feature purchases are permitted.
It's a lot more complicated than Gonzo's original expedition, but importantly, it still feels like Gonzo's Quest. NetEnt hasn't replaced the Avalanche mechanic that made the series famous. It's simply given Gonzo a much bigger mountain to fall down.
NetEnt's famous Avalanche mechanic is its version of Cascading Reels.
After a winning combination, the contributing symbols disappear and new symbols fall into the empty spaces. If another winning combination forms, another Avalanche takes place.
The important difference in this sequel is that Avalanches now affect much more than the symbols.
Every successful Avalanche adds another row to the top of the grid and increases the multiplier. That means a sequence of wins progressively changes both the size and potential of the playing area.
The original Gonzo liked an Avalanche.
This one apparently wants the entire mountain.
Every spin begins with 6 reels and 4 rows.
Trigger an Avalanche and an additional row is added. Further Avalanches can continue expanding the playing area until it reaches a maximum 6x8 grid, providing up to 262,144 Ways to Win.
In the base game, the grid resets to 6x4 once the Avalanche sequence ends.
I particularly like how naturally this works with the Cascading mechanic. Instead of simply increasing a number above the reels, successful consecutive wins physically make the game larger.
More Avalanches. More rows. More Ways.
Very easy to understand.
Consecutive Avalanches also increase the Win Multiplier, giving successful sequences increasing value as they continue.
This works extremely well alongside Expanding Reels because two things are developing simultaneously.
The grid is getting bigger while the multiplier is getting stronger.
That's exactly the sort of interaction I want to see from features. Neither mechanic feels as though it has simply been bolted onto the game independently.
The Calamity Wild is essentially an Exploding Wild.
When a Calamity Wild participates in a winning combination, it explodes and places between 3 and 6 additional Wilds randomly across the grid before the next Avalanche begins.
This is a very good addition to the Avalanche structure.
Those newly created Wilds can help generate another win, which produces another Avalanche, which expands the grid and increases the multiplier.
So once again, one feature can directly feed another.
Calamity by name. Potentially quite useful in practice.
High paying symbols and Scatters can appear as Colossal Symbols, occupying 2x2, 3x3 or even 4x4 areas of the grid.
For win evaluation, these aren't treated as one enormous symbol. A 2x2 Colossal Symbol counts as four individual symbols, a 3x3 as nine and a 4x4 as sixteen.
That becomes particularly significant as the grid expands because there's considerably more room available for these huge symbols to appear alongside ordinary combinations.
They also have another trick.
During the Random Wilds feature, up to two Colossal high paying symbols can transform into Colossal Wilds.
A 4x4 Colossal Wild effectively provides sixteen Wild positions at once, so this can completely change the appearance of the grid.
It's also visually satisfying.
A giant premium symbol appearing is already noticeable. Watching the whole thing turn Wild gives those oversized symbols another reason to matter.
Landing 3, 4, 5 or 6 consecutive Scatters beginning from the leftmost reel awards 10, 12, 15 or 20 Free Spins respectively.
Free Spins start with a 2x multiplier, which increases by +2 for every Avalanche.
There's another important improvement.
Expanded rows remain in place between Free Spins.
That completely changes the progression compared with the base game. Instead of building the grid during one Avalanche sequence and watching it reset, successful expansions become persistent for the remainder of the feature, up to the maximum eight rows.
That's exactly what a Free Spins feature should do.
Take the best base game mechanic and make it better.
Trigger the feature using at least one Colossal Scatter and ordinary Free Spins are upgraded to Super Free Spins.
The size of the Colossal Scatter determines how powerful the multiplier becomes.
A 2x2 Scatter starts the multiplier at 2x and adds +2 with each Avalanche. A 3x3 starts at 3x and adds +3, while a 4x4 starts at 5x and increases by +5 with every Avalanche.
This is where things can get serious very quickly.
A growing grid is already useful. A growing grid with a multiplier jumping another five points every time an Avalanche continues is something else entirely.
Additional Scatters can award further Free Spins, while a Colossal Scatter involved in the appropriate trigger can also upgrade ordinary Free Spins into Super Free Spins.
That means a feature isn't necessarily locked into the state in which it began.
There's still the possibility of finding a considerably better version of Gonzo's adventure after you've already started it.
NetEnt calls its feature purchase system Elevate, which we'd place under the wider Feature Buy category.
There are five options.
Bonus Hunt costs 2x the stake and guarantees at least one Scatter. Calamity Explosion costs 10x and guarantees a Calamity Wild involved in a winning combination. Calamity Max costs 30x and starts with the maximum eight row grid alongside a Calamity Wild win. Free Spins cost 100x, while guaranteed Super Free Spins cost a substantial 1,000x the stake.
Availability naturally depends on the casino and jurisdiction.
As with our other reviews, I'm not awarding extra rating points simply because players can pay to access features.
This is a very strong piece of slot design.
The important thing is that winning actually changes the game.
An Avalanche removes symbols. Another win expands the grid. The expanding grid creates more Ways to Win. At the same time, the multiplier increases. Calamity Wilds can then introduce additional Wilds capable of helping that sequence continue.
There's a natural chain reaction to everything.
Free Spins improve matters further by making those expanded rows persistent, so progress achieved on one spin influences what happens on subsequent spins.
The only thing holding it below 9 is that there's a lot happening. Players who loved the extreme simplicity of the original Gonzo's Quest might find its sequel rather busy.
This is one of the stronger feature packages we've reviewed.
Not because there are lots of named features, but because they actually interact.
Avalanches expand the grid and increase multipliers. Calamity Wilds can create more opportunities for Avalanches. Colossal Symbols interact with Random Wilds. Free Spins retain grid expansion. Super Free Spins make the multiplier progression considerably stronger.
That's exactly what we've been looking for with this rating.
The difference between ordinary Free Spins and Super Free Spins is also meaningful rather than cosmetic. Getting a 4x4 Colossal Scatter and having the multiplier start at 5x before increasing another +5 per Avalanche gives the premium feature a genuinely different ceiling.
Gonzo has had quite the makeover since his first expedition.
The jungle environment is detailed and cinematic, Gonzo himself is considerably more expressive and the game does an excellent job of visually communicating its mechanics.
More importantly, the presentation isn't static.
The grid physically grows as Avalanches continue. Huge 2x2, 3x3 and 4x4 symbols can dominate sections of the reels. Calamity Wilds explode into additional Wilds and Colossal Symbols can transform into enormous Wild blocks.
That gives the game genuine spectacle when several mechanics begin interacting.
It also retains enough of the original visual identity to immediately look like Gonzo's Quest rather than a completely unrelated slot with a familiar character pasted onto it.
This category needs a little nuance.
Gonzo's Quest II obviously isn't an entirely original concept. It's a sequel to one of NetEnt's most famous games and Avalanches are deliberately carried over from the original.
Cascading wins, expanding grids, Colossal Symbols and Wild explosions aren't individually new concepts either.
What deserves credit is the way NetEnt has assembled them.
Every Avalanche can expand the grid while strengthening the multiplier. Free Spins make those expansions persistent. Colossal Scatters determine the strength of Super Free Spins, while Calamity Wilds can potentially help extend Avalanche sequences.
It feels like NetEnt asked how the original Avalanche mechanic could be developed rather than simply asking what popular 2025 features could be added around Gonzo.
That's an important distinction.
Overall Rating
9.0/10
Gonzo's Quest II: Return to El Dorado is the sort of sequel a famous slot deserves. It keeps the mechanic everyone remembers and then asks how much further it can be pushed.
Avalanches remain at the centre of everything, but now successful sequences physically expand the grid from 6x4 towards 6x8 while simultaneously increasing the multiplier. Calamity Wilds can explode into additional Wilds, Colossal Symbols can occupy areas as large as 4x4 and Random Wilds can transform those giant symbols into equally enormous Wild blocks.
Free Spins are even better. Grid expansions become persistent, multipliers start at 2x and increase with every Avalanche, while Colossal Scatters can unlock Super Free Spins where a 4x4 trigger starts at 5x and adds another +5 for every successful Avalanche.
It's certainly busier than the original. There's an argument that Gonzo has returned to El Dorado carrying considerably more luggage than he needs, particularly with five Elevate options sitting alongside an already substantial feature package.
But underneath all of that is a very coherent game.
The features aren't fighting for attention. Most of them feed directly into the Avalanche system that made Gonzo's Quest famous in the first place.
One thing players should pay particular attention to is RTP configuration. NetEnt's official documentation lists 96.06%, 94.15%, 92.13% and 88.10% versions, and live operators do use different settings. That's a substantial enough difference that checking the version offered by a particular casino is worthwhile.
There's no built in progressive jackpot, so no Jackpot Modifier applies.
Gonzo spent years searching for El Dorado. Judging by how much NetEnt has packed into the sequel, he appears to have found the features department on the way.
