Matt Brown
- Release Date: July 28, 2025
- Developer: Pragmatic Play
- RTP: 94.50%
- Volatility: Very High
Gem Trio is a straight-up, no-nonsense type of slot with a heavy retro vibe and a few spicy modifiers to shake things up, which really takes this game off the rails. If you’re into clean visuals, fast reels, and simple mechanics packed with decent payout potential, this one ticks the boxes and will keep you coming back for more.
This 3×3 grid slot from Pragmatic Play is loaded with emeralds, diamonds, and rubies. But make no mistake — this is more than a rehash of the typical old-school games. With up to 20,000x max win potential and 3 types of wilds, it brings some bite to the simplicity.
A Retro Grid With a Hidden Edge
Gem Trio keeps things clean, and that’s one of the best things about it. It’s built around a 3-reel, 3-row layout with 9 fixed paylines. You’re not looking at a complex reel engine here like some other games — this one thrives on simplicity. Simply spin the reels, land some combos, and let the modifiers do their work.
The base game centers on landing three-of-a-kind symbol wins. If you match symbols like 7s or BARs, you can hit up to 250x your bet. And that’s just in the base game. But the magic comes when you land the 3x wild. This wild doesn’t just sub in as you’d expect a wild to do — it triples any win it helps form, unless it’s paired with another wild.
3 types of wilds can appear anywhere on the reels — a standard wild, a 3x multiplier wild, and a colored wild associated with the emerald, diamond, or ruby modifiers
These wilds not only make base hits more frequent but also open the door for stacked effects in the bonus round.
Modifiers That Actually Matter
Here’s where things get really interesting, really quickly.
Anytime you land an emerald, diamond, or ruby gem, it gets sucked up into its respective collector at the top of the screen. When you get enough of them, you’ll trigger the free spins bonus with up to 3 modifiers active.
It’s not really a “choose one” situation either. You can get 1, 2, or all 3 modifiers in a single bonus round, which really amps up the game.
Here’s what each of these modifiers does—
- Emerald Modifier. Adds +1 or +2 free spins whenever an emerald lands during the bonus.
- Diamond Modifier. Triggers fixed cash prizes — up to 10,000x — when diamonds land.
- Ruby Modifier: Expands the game into a second 3×3 grid, giving you double the reels to work with.
That last one turns the game into a monster of a 6×3 layout, and the wilds remain active across both grids.
The best part is that you don’t have to wait for modifiers to trigger at once — they can overlap, creating moments where wilds, payouts, and extra spins pile on in a single round. The build-up to this moment keeps things tense, even in quieter spins.
Bonus Buys and High-Stakes Potential
For those who are like us and don’t want to wait around for the bonus, Gem Trio offers 3 different Bonus Buy options—
- 50x bet for 1 modifier
- 100x for 2 modifiers
- 200x for all 3 modifiers active
This gives you a bit of control over how intense you want the bonus round to be. If you’re feeling lucky or a bit reckless, you can go all in at 200x and play with the full combo right from the jump. It’s pricey and it’s a gamble, but if you have the GC or SC to pull it off, it might work out.
With a top payout of 20,000x, there’s no shortage of ceiling. And yes, the diamond modifier is where this gets wild. That one can spit out 4 separate prizes in a single hit — each going up to 10,000x.
Of course, that won’t happen often, but the odds of hitting over 1,000x are around 1 in 1.4 million. But that’s not out of line for a high-volatility slot like this.
You can bet as little as 0.10 SC or go up to 250 SC per spin, so this one works for both budget players and high rollers.
Fast Reels, Juicy Hit Rates
Even though it’s a 3×3 slot, Gem Trio keeps things brisk. The base hit frequency is a solid 1 in 3.6 spins, which means you’re not going to be sitting through endless dead rounds just trying to rake a few coins. Free spins, on the other hand, are a rarer treat at about 1 in 94 spins, but that’s where it gets spicy.
The bonus round is worth waiting for, though. It doesn’t play out like a typical feature with random wilds and filler spins. With modifiers active, almost every spin can do something fairly meaningful — either growing your potential, expanding the reels, or tossing coins at you directly. You most likely won’t go without once you’re in the bonus rounds.
Classic Look, Modern Punch
Visually, this game walks the tightrope between Vegas nostalgia and digital polish, but that’s what we love about it. The symbols are sharp with their classic 7s, BARs, and gems, but the animations and grid transitions feel fluid and modern.
The top bar gem collectors aren’t just for show, either. When those gems light up and feed into the bonus, there’s real tension because you know something’s coming. And the moment it hits, you’ve got double reels, cash blasts, and extra spins that keep you in the seat.
On mobile and desktop, the layout holds up nicely. Everything is clean, readable, and easy to follow, even when the reels double up during ruby bonuses. It’s polished without being flashy as it’s simple on the surface, but packed underneath.
Ready to Test the Trio?
Gem Trio isn’t built to confuse; instead, it’s fast, it’s fierce, and it’s all about stacking potential. Whether you’re in it for the thrill of big multipliers, stacked wilds, or that monster 20,000x diamond prize, there’s enough here to keep the reels worth spinning for hours on end.
If you want a slot where every bonus round can go nuclear, then you’ll want to try Gem Trio and watch what happens when all 3 gems light up.
You’re not just spinning for the sake of spinning — you’re setting up something bigger.
