If you’ve spent any time browsing casino lobbies lately, you know that “Joker” themes are a dime a dozen. But occasionally, a provider takes that classic aesthetic and injects it with some surprisingly deep mechanics. Fire and Diamond Joker is one of those games.
During my test session, I found a slot that moves away from quick, instant-gratification hits and instead asks you to play the long game. With a 3-4-5-4-3 diamond grid and two distinct collection meters, this is a game for players who like to build their potential. Here’s my honest breakdown of how it plays.
720 Ways to Win (And Double Payouts)
Let’s start with the base game. The stepped 3-4-5-4-3 grid gives us 720 ways to win, but the real star of the show is the rule printed right on the screen: Pays Both Directions.
Because the game reads combinations from left-to-right and right-to-left, a five of a kind is counted from both edges, so the same board pays twice.
The Wild symbols sit only on the middle three reels. It means Wilds will help extend your wins from either side, but you’ll still need regular symbols to kick things off.
The “Near-Miss” Multiplier Grind
To trigger the free spins, you need to spell out J-O-K-E-R with scatter symbols across all five reels. But what happens when you land four and miss the fifth?
Instead of just leaving you frustrated, Fire and Diamond Joker turns that near-miss into currency. Every time you land scatters on exactly four of the five reels, a half-stake token is added to a multiplier meter. The meter tops out at 10x while you’re on the base reels, then follows you into the free spins (where the cap raises to 15x).
Here is my one fair warning: This meter does nothing in the base game. It is purely banked potential waiting for the bonus round. Over about 200 spins, I hit four scatters a handful of times, watching the multiplier tick up while the reels paid out standard wins.

If you want a multiplier that works on the base reels, look elsewhere; here it only waits for the bonus. Furthermore, the meter resets to 1x after your bonus round ends, so you really have to commit to a session to see the payoff.
Feeding the Jackpot Plaques
The top of the screen is dominated by five progressive jackpot plaques, one hovering over each reel. Whenever a regular symbol lands with a small gem attached, it adds half your bet to the plaque directly above it. As your session goes on, you literally watch your potential jackpots grow.
Every gem is also a shot at the Jackpot Wheel, at odds the game doesn’t show. However, I have to point out a slightly weird design choice here: the wheel trigger is totally disconnected from the reels.
You might land a gem on reel 5, trigger the wheel, and end up winning the “Minor” plaque hovering over reel 1. In my session, the wheel popped up twice. One spin gave me the Major jackpot at its baseline starting value, while the other handed me a Minor plaque I had been quietly fattening up all evening. It’s a fun feature, and with the “Ultra” plaque able to grow to 5,000x the bet, it definitely keeps the base game interesting, just don’t expect the reel you trigger it on to matter.

The Verdict: Who is this for?
Fire and Diamond Joker runs at a 96.01% RTP, and its base game clips along at a great pace, and the 720 ways do a lot of heavy lifting to keep your balance steady (a solid four-of-a-kind Blue 7s hit netted me a nice 24x top-up).
But make no mistake: this is a game for chasers.
You aren’t playing for random base-game explosions; you are playing to feed those jackpot plaques and build that free spins multiplier. You’re chasing that perfect moment where a board full of Blue 7s collides with a heavy bonus multiplier, or hoping the Jackpot wheel lands on the specific plaque you’ve spent an hour feeding.
Pros
- 5-of-a-kind hits pay double because wins count in both directions.
- Near-misses are rewarded, softening the blow of missing the bonus.
- Persistent jackpot meters make you feel invested in your session.
Cons
- Multiplier bank is useless until you actually trigger Free Spins.
- The jackpot wheel feels a bit disconnected from the reel action.