Diamonds Power: Hold and Win on a compact 3x3 grid

Quick Facts

RTP note: RTP, volatility and bet limits can differ by casino build; verify in the in-game info panel.

Sources: * Playson Official, SlotCatalog, * Casino.guru, Casinos.com / FluffySpins (max win, base build).

1. Main screen layout and controls

The core view is a compact 3x3 grid, topped by a jackpot bar that lists four tiers: Mini, Minor, Major, and Grand. Spin control sits on the right side with a large spin button, while auto play and a faster spin mode are grouped nearby as separate icons. Bet and balance sit along the bottom, leaving the lower corner reserved for info and menu icons to access the paytable and settings.

2. Paylines and line wins

The game uses 5 fixed paylines. The line paths include straight rows and diagonal lines, and they fit inside the 3x3 grid. A line view screen draws the line routes over the grid, so it is clear which symbol positions form each line. This setup keeps the win read simple: wins use the fixed lines, not a ways system.

3. Symbols and base payouts

The paytable lists 3-of-a-kind payouts; see the paytable image for values. The highest-payout regular symbol set sits above the card-suit style symbols. The 777 Wild substitutes for standard symbols, but it does not substitute Bonus and Power Bonus. Wild also has its own 3-of-a-kind payout. The 777 Wild appears on reels 1 and 3 only - it does not land on reel 2. Bonus and Power Bonus act as feature symbols, so they sit outside the normal symbol set.

4. Bonus and Power Bonus symbols

In the reviewed demo/help screen, Bonus symbols land on reels 1 and 3. The Power Bonus symbol lands on reel 2, and it links the middle reel to the feature logic. The Hold and Win bonus starts from Bonus symbols on reels 1 and 3 together with a Power Bonus on reel 2.

Diamond Pile Random Feature can add extra Bonus and Power Bonus symbols after a Bonus symbol lands in the base game. Accumulated symbols are shown stacked above the reels. The pile can drop at any spin, and if the drop creates the trigger condition, the Hold and Win round starts immediately without a natural full-reel hit. Diamonds Power Feature starts from the Power Bonus symbol in combination with a Bonus symbol. When the Power Bonus lands and sticks in place, it collects the displayed value from every diamond on the current grid - including any jackpot-tier symbols - and awards the combined total for that respin.

5. Hold and Win bonus round

The bonus phase uses the same 3x3 grid, but symbol behavior changes. During the bonus, the grid uses bonus-symbol drops and keeps existing bonus symbols fixed. The bonus starts with three respins, and each new symbol resets the counter back to three. Diamond coins in this phase carry individual multiplier values from x1 to x15 of the triggering bet. Jackpot-labeled Bonus symbols can also land in this phase and award one of the four fixed tiers. All four jackpot tiers are fixed, not progressive - their values scale with bet size. At bet 1.00: Mini ≈x25, Minor ≈x50, Major ≈x150, Grand x1,000. At minimum bet 0.20 those amounts scale down proportionally. These rules are described in the reviewed demo/help screen.

6. RTP and volatility snapshot

RTP is 95.66%. Volatility is medium-high. A casino can run a different RTP setup for the same title. The value in the casino build sits in the info screen, not in the logo or lobby card.

Note: Neither RTP nor volatility is displayed in the game info panel of the reviewed build (VER 0.12.1). The 95.66% figure comes from provider specs and external aggregators; verify in your casino's info panel before playing for real money.

Published hit frequency for this title is approximately 10.9% - roughly 1 in 9 spins produces a line win in the base game. The majority of the RTP is carried by the Hold and Win bonus rather than base-game line wins.

7. Pros and Cons

8. Demo version

The demo version runs with credits and mirrors the same base layout, paylines, and feature screens. In the demo build, the following can be checked directly:

• Line paths via the Lines screen in the info panel - all five routes confirmed across rows and diagonals
• Symbol roles - 777 Wild substitution confirmed as not able to cover Bonus or Power Bonus.
• Reel placement of Bonus (reels 1 and 3) and Power Bonus (reel 2) - verified against the in-game help screen
• Hold and Win bonus screen appearance - visible when the bonus starts

The info icon opens the paytable pages, so core symbols and feature icons are visible without any cash play.

Play Demo

9. Casino version notes

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The casino build can differ from the demo in RTP setup and bet limits. The info panel inside the casino build is the clean place to verify those values. Responsible play tools depend on the casino, not the slot. Limit and timeout tools sit in the casino account layer, not in the game grid.

10. Quick questions people ask