Coins n Diamonds Fortune is extremely easy to settle into, although that accessibility comes at the expense of variety.

The 243 Ways setup gives the ordinary reels more opportunities to connect than a small fixed payline game, and the colourful premium diamonds are easy to follow. Medium volatility also feels appropriate because this isn't pretending to be a brutally difficult slot where almost everything depends on one enormous bonus.

The 97.2% RTP deserves particular praise. That's exceptionally healthy compared with many modern releases we've been reviewing around the 94% to 96% mark and makes the modest 1,500x maximum feel like a deliberate mathematical trade off rather than simply a lack of ambition.

The weakness is that ordinary spins don't contain much else. If the Bonus Coins aren't appearing, you're essentially playing a straightforward 243 Ways gem slot and waiting for them.

That won't bother players looking for something simple, but anyone wanting constant modifiers and progression will find the vault rather quiet between visits.

Score 7.0/10

The Hold n Win feature is perfectly enjoyable, but Coins n Diamonds Fortune doesn't pretend there's a second layer waiting underneath it.

Locking Coins, resetting the three Respins and gradually filling the board remains an effective formula because you can always see how well the feature is developing. The 100x Mini and particularly the 1,000x Mega give you something worthwhile to uncover beyond ordinary Cash values.

What holds the score down is depth. Once you've played Hold n Win, you've essentially seen what the game has to offer. There isn't another modifier waiting to improve the Coins, no second bonus route and no progression system that changes how later Respins behave.

I don't necessarily think that's a design failure. 1spin4win clearly wanted a straightforward slot and has produced one. But when we're specifically rating the quality and breadth of the feature package, simplicity can't earn the same score as a game where several well designed mechanics interact.

Score 6.8/10

Coins n Diamonds Fortune looks clean and suitably expensive without doing anything particularly adventurous.

The dark red and gold vault provides a strong background for the brightly coloured diamonds, while purple, red, blue and green gems make the premium symbols immediately recognisable. The presentation is deliberately reminiscent of classic casino slots rather than trying to create a detailed fantasy world around the reels.

That simplicity suits the game. The Hold n Win screen remains easy to follow, Cash values are clearly displayed and there isn't so much animation happening that you lose track of what you've actually won.

Diamonds and gold are hardly unexplored territory for casino games, though. 1spin4win has polished them nicely, but even the finest cut diamond isn't going to make a vault full of gems feel like a revolutionary visual concept.

Score 7.1/10

Coins n Diamonds Fortune is probably the easiest game we've reviewed to understand within the first few spins, but that's partly because almost everything it does will already feel familiar.

The 243 Ways structure gives the base game a little more freedom than an old fixed line slot, while the Hold n Win feature is clean and effective. The decision to keep the jackpot structure to just a meaningful 100x Mini and 1,000x Mega is something I quite like too.

But there isn't really a signature mechanic here that makes me think only Coins n Diamonds Fortune could have used it. The diamonds provide the theme, Coins provide the bonus and Hold n Win provides the main entertainment.

That doesn't make the game bad. In fact, the unusually high 97.2% RTP may make its conservative approach attractive to players who are tired of increasingly complicated slots with increasingly ungenerous maths.

Originality, however, has to reward invention rather than simplicity, and this particular vault contains considerably more gold than new ideas.

Score 5.8/10