Fire and Diamond Joker Slot Review

Released in September 2025, Games Global's Fire and Diamond Joker is a fiery, classic-style fruit machine that packs in some surprisingly modern mechanics. It combines a progressive jackpot wheel with a clever free spins round that actually rewards your "near misses." If you're familiar with the studio's other games, you'll definitely recognize some of the features here, but this slot takes a more traditional approach by making you play through the base game to earn your bonuses. The studio lists the RTP at 96.01% and rates the volatility very high.

Right above the reels, you'll see five progressive jackpot meters, one for each reel, ranging from a Mini up to an Ultra that caps out at a solid 5,000x your bet. As you play, regular symbols can land with little gems attached. Each gem adds half your stake to the jackpot meter directly above it, and also gives you a random chance to trigger the Jackpot Wheel.

One thing to keep in mind: when the wheel triggers, it guarantees one of the five prizes, but it doesn't necessarily award the jackpot from the reel that triggered it. In my own session, I landed two gems on the first reel to trigger the wheel, but it ended up landing on the Major prize above reel four, paying out 50x my bet. Later on, I got an 18.5x Minor jackpot that I had slowly built up over previous spins. It's actually really fun watching the jackpots grow as a visual record of your session, though it can be slightly bittersweet knowing the random wheel might not land on the specific pot you've spent the most time feeding.

The main attraction is the free spins bonus, which triggers when you land a JOKER scatter on all five reels. You get your stake back immediately, and every scatter awards either an extra free spin or adds +1x to your multiplier.

What I really like about this game is how it handles near misses. Whenever you land scatters on exactly four of the five reels, the game softens the blow by adding +0.5x to a banked multiplier meter. This can build up to 10x in the base game (and up to 15x once inside the bonus), multiplying all your wins and retriggers during the free spins.

It's a great concept that makes dead-end spins feel productive, but it does require patience. In my playthrough of about 200 spins, that elusive fifth scatter never dropped for me. My meter built up to 2.5x, but without triggering the bonus, it just sat there. During that dry spell, my best base-game hit was a four-of-a-kind win that paid 32x. It's a good reminder that this game can be a bit of a slow burn.

If you're a fan of Games Global (and Microgaming) titles, you'll notice a lot of familiar DNA here. The near-miss multiplier also turns up in games like Bison Fire Charge and Cash Blitz Extreme, while Mayan Boost puts its own row of upgradeable meters over the reels.

The biggest difference between Fire and Diamond Joker and its sister games is how you access the features. While Bison Fire Charge and Mayan Boost offer Bonus Buy options for players who want to pay to skip the line, this game strips the buy feature out completely.

This is a game designed for players who enjoy the classic slot experience. By removing the shortcuts, it forces you to actually play the base game and build up your potential organically. If you don't mind the wait and enjoy watching your jackpots and multipliers grow over time, it's a really solid, traditional spinner.