Diamonds XXL Multiboost
demo and specs

Diamonds XXL Multiboost is a diamonds-themed video slot from Enjoy Gaming, due on 10 September 2026. It plays on a 3x5 grid, which means three rows and five reels, with 15 paylines running across it.

The core mechanic is Hold & Win. The published RTP is 95.48%, the volatility is graded Medium, and the maximum win is 1,000x your stake. Stakes run from £0.10 to £100 a spin.

A 3x5 grid, 15 paylines, 95.48% RTP and a 1,000x ceiling: a compact, medium-risk Hold & Win slot.

The format is the classic one. Three rows, five reels and fifteen fixed lines are about as readable as a slot gets, and the diamonds theme fits that no-fuss approach. It is aimed at players who like a clear layout and a respin-style feature over a sprawling bonus structure.

It should also suit people who want some variance without the long dry runs of a high-volatility title. Medium volatility is the middle setting, and the grid size keeps the pace brisk.

On what is published: the studio has given the RTP, volatility, max win, grid, paylines, mechanic, theme and stake range. It has not published a hit rate or the detailed rules of the bonus round. Where a figure is missing, this page says so rather than filling the gap.

The RTP is 95.48%. Against the rough 96% UK average, that is about half a percentage point lower. Over a long run, every £100 staked returns £95.48 on average, leaving £4.52 as the house edge. At £1,000 staked, the average return is £954.80.

RTP is a long-run average across a huge number of spins, not a promise for one evening. A short session can land well above or well below it. The practical point is that the edge here is a little wider than on a typical 96% slot, so the same budget has a slightly lower expected life.

Volatility is graded Medium. In practice that means wins of moderate size land at a moderate pace, with dry spells that are noticeable but not punishing. It is not the steady drip of a low-volatility slot, and it is not the long drought followed by a spike of a high-volatility one.

The max win is 1,000x the stake. At the minimum stake of £0.10, that is £100. At the maximum stake of £100, it is £100,000. Both are the ceiling on a single outcome, not a typical result, and reaching it would take the very top of the game's range.

At a mid-range stake the same multiplier scales in a straight line. A £1 spin has a ceiling of £1,000, and a £10 spin has a ceiling of £10,000. The multiplier stays fixed while the cash value follows your stake, which is why the stake choice matters more than anything else you control.

The studio has not published a hit rate for this game, so there is no official figure for how often a spin pays. What can be said is that Medium volatility together with a 1,000x cap points to a game built around regular modest returns, with the bonus round as the main route to the larger payouts.

The published feature set is short, and each item below is described only as far as the specs allow:

• Hold & Win: the core mechanic. In this category, special symbols usually lock in place and the player is given respins to land more, with the locked symbols collected when the round ends.
• Multiboost: the name carried in the title, which signals a boosting element. The studio has not published how it works in this game, so no mechanics are described here.
• 15 fixed paylines: wins in the base game are paid along fifteen set lines across the 3x5 grid, which keeps play between features simple to follow.
• Diamonds theme: the visual identity of the game, built around the gem imagery named in the title.

The studio has not published the trigger for the Hold & Win round, the number of respins, how symbol values are set, or how Multiboost applies. This page is updated when the studio publishes those details. Nothing here guesses at them.

The base game is a 3x5 grid with 15 paylines. Wins are paid along the lines, so each spin is quick to read: you see the grid, check the lines and move on. Between features, that is the whole rhythm of the game, steady and uncomplicated.

Stakes run from £0.10 to £100 a spin. The low end suits cautious play, long sessions on a small budget and learning the layout. At £0.10 the top prize is £100, so the risk is small and the ceiling is small with it.

The high end suits players who want the 1,000x ceiling to mean serious money, since £100 a spin puts the top prize at £100,000. That is a much larger commitment for each spin, and it should come from a bankroll set aside for it.

For Medium volatility, a sensible approach is to size the stake so that a run of unproductive spins does not end the session early. A smaller stake gives the Hold & Win round more chances to appear within the same budget. That is a budgeting point, not a promise about when it arrives.

On mobile, slots from modern studios are built for phones and tablets as standard, and the grid layout here is compact enough to suit a small screen. The UK build rules apply on a phone exactly as on desktop, including the spin-speed and display requirements set for GB players. Nothing changes in the maths when you switch device.

Among Hold & Win slots, Diamonds XXL Multiboost sits at the steadier, lower-ceiling end of the field. Many slots in this category chase big jackpot-style tops and accept long, quiet stretches to get them. This one trades that for a medium-volatility profile and a 1,000x cap.

That trade is the point. A lower ceiling usually comes with a game that pays more regularly and strains the bankroll less, while a very high ceiling is usually paid for with rarer wins. Here the top prize is 1,000x, so the upside is real but bounded, and the ride should be smoother than at the high-risk end.

The RTP of 95.48% also sits a little under the typical UK figure, so some of the value is taken in the margin rather than in volatility. Players who weigh return above all may prefer a higher-RTP title in the same category.

For exact comparison figures, the similar-slots table that follows shows the real numbers side by side. The short version: a simpler 3x5, 15-line layout, a middle-of-the-road risk setting and a modest ceiling.

It suits these players:

• Players who like a classic 3x5, 15-line layout and a respin-style bonus without a lot of rules to learn.
• Those who want medium volatility, with a mix of smaller and larger wins and noticeable but not extreme dry spells.
• Budget-minded players using stakes from £0.10, where the ceiling is a modest £100 and the risk per spin is low.
• Anyone who wants to try the Hold & Win mechanic first on a free play-money demo before committing real money.

Who should skip it: players chasing a very large top prize, since the cap is 1,000x, and those who put RTP first, since 95.48% is under the rough 96% UK average. It is also a poor fit if you need the bonus mechanics fully documented before you play, because the studio has not published them yet.