Matt Brown
- Release Date: June 27, 2025
- Developer: 4ThePlayer (via Relax Gaming)
- RTP: 96.01% (Standard)
- Volatility: Medium (5 out of 10)
If you’ve got a thing for pirates, gold, and games that don’t mess around with boring spins, 4 Pirate Chests might just become your next obsession for the grind. Created by 4ThePlayer and powered through Relax Gaming’s platform, this slot game launches you into high-seas chaos with Skull Coins, treasure chests, and tons of mystery wins. We love this slot game because it’s colorful, fast, and packed with features that keep every spin feeling like you’re about to hit a jackpot — or walk the plank.
Layout and Payouts That Keep Things Interesting
The base setup in 4 Pirate Chests is a 5×4 grid, which gives you 1024 ways to win. No, that’s not a typo — you get 1000+ chances per spin to line up winning combos.
You’ll find swords, telescopes, compasses, and the pirates themselves. Everything you’d imagine you’d find on a pirate ship sailing through the Caribbean. A glowing wild symbol helps complete winning lines, while the Bonus symbol plays a key role in triggering features.
What really adds weight to each spin is what you’ll find above the reels — treasure chests that collect Skull Coins. These aren’t just for show like they’re part of the background — they directly influence your chances of unlocking bonus features and mystery payouts. And with a hit frequency of 31.25%, wins aren’t few and far between. You’re not going to have dry spells on this sweepstakes game.
The game maxes out at 10,240x your bet, with a bet range between 0.10 SC and 80 SC. So it doesn’t matter if you’re a cautious player or a high roller, there’s plenty of room to find your own pace and rack up the wins with the spins.
BOOMPOTS and Mystery Pirate Pays
The BOOMPOTS feature is undoubtedly the heartbeat of this slot. As we mentioned before, above reels 2-5, you’ll see treasure chests just waiting to be filled. Every time you collect a Skull Coin, it gets added to a chest. At any moment, these chests can pop open and trigger Mystery Pirate Pays. This then turns your screen into a storm of matching mystery symbols.
Since each one is different, here’s how each reel’s BOOMPOTS chest works—
- Reel 2: Triggers 8 Free Spins
- Reel 3: Triggers a 3-of-a-kind mystery symbol win
- Reel 4: Triggers a 4-of-a-kind mystery win
- Reel 5: Triggers a 5-of-a-kind mystery win
This means that even in regular spins, you’re just one Skull Coin away from a massive payout. It gives the game an unpredictable but exciting rhythm that you’re going to love. One second you’re spinning like usual, the next, your whole board’s lit up with matching icons and coins raining down.
Pirate Plunder Free Spins
If you think that’s great, this will blow your mind. Free spins that don’t hold back. Land a Skull Coin above reel 2 and you’ll unlock Pirate Plunder free spins. You start with 8 spins, but during this mode, treasure chests trigger BOOMPOTS features more frequently.
In other words, you’re not just spinning for the sake of it during your grind. Every spin has higher odds of spawning Mystery Pirate Pays, which can retrigger additional free spins or dump piles of mystery symbols across the board. You don’t know which you’ll get, but the odds get better.
Plus, if you fill the chest above reel 2 again during free spins, you get an extra 4 spins. This compounding feature makes the free spins round one of the most lucrative parts of the game. You’re not limited to one hit, either, as it can keep going if the coins keep coming. This means you can keep stacking wins over and over.
Buy Feature for Instant Action
If you don’t want to wait around to trigger free spins or the full-board mystery win, then you’re in luck. The game includes a Buy Feature, which lets you purchase instant access to free spins or a guaranteed 5-reel Mystery Pirate Pays BOOMPOTS win.
What this means for you is that instead of grinding for the perfect setup, you can pay to skip straight to the best parts.
It’s perfect for players who like to cut to the chase and get to the most intriguing aspects of the game — or just really want to see what a 5-reel mystery payout looks like. Spoiler alert — it’s loaded.
Visuals, Sound, and Theme
As you’d expect from most 4ThePlayer games, the production quality is strong here. The art leans hard into the pirate fantasy, with glowing-eyed captains, shadowy waters, and golden loot everywhere. The characters have some attitude to them, the reels are undeniably crisp, and the treasure chests animate every time something’s brewing. You can tell they’ve pumped quite a bit of effort into making this sweepstakes slot shine.
Audio-wise, it’s everything you’d expect — nautical music with the occasional clang of coins and mysterious fanfare. It adds to the tension without overwhelming your senses. And the little sound cues when coins drop into chests? Perfectly timed and welcomed when you get a win.
The game’s interface is also sharp as it’s intuitive, even on mobile. All the important info is easy to spot such as your bet size, win tally, and how close you are to triggering the next feature. The developers thought out every aspect of this game.
What Sets It Apart
Let’s be honest — pirate-themed slots aren’t new and there are tons of them on the market. But 4 Pirate Chests doesn’t just slap on a theme and call it a day. Instead, it makes the pirate vibe matter. Everything from the Skull Coins and chests that add a strategic feel, to the BOOMPOTS that keep your attention from drifting. It’s not just spin and pray — there’s anticipation, timing, and real momentum.
The use of 4 distinct chests, each with its own trigger type, gives players more to look forward to. You’re not stuck hoping for one bonus symbol as you’ve got multiple angles for something to hit.
Plus, the balance between base game wins, mystery reveals, and feature rounds feels tight no matter how long you spin the reels. Even outside of free spins, the game can surprise you.
4 Pirate Chests is built for players who like surprises, big potential wins, and a game that actually rewards you for paying attention. Between the whopping 1024 win ways, BOOMPOTS mechanics, and tons of free spins, there’s always something going on. It’s bold without being chaotic, and strategic without being slow.
Whether you’re a casual spinner or a competitive sweepstakes casino gamer, this game keeps you entertained without dragging you through dry spells. It’s smartly built, visually sharp, and full of treasure just waiting to be grabbed.
Our recommendation is to keep an eye on those chests — because when they open, things get wild.
