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Why this score
Sparse data (43%) — interpret with cautionFive weighted signals shape the composite. Four context signals refine ties. See how we rate for the full methodology.
Popularity blends real player search demand (~30 markets) with a catalogue-derived proxy; games without measurable search demand use the proxy alone. Not live play telemetry.
SlotRanker Score: 49 — Supreme Diamond XXL by 3 Oaks
https://slotranker.com/3-oaks/supreme-diamond-xxl#scoreSlot Summary
How It Plays
The 3x5 base game uses 15 lines, with ordinary gemstone results occasionally giving way to Bonus symbols, collector Diamonds, and feature-triggering events.
A collector absorbs the values of visible Bonus symbols. Those Bonus symbols are then removed, leaving positions available for replacements on the following respin.
Theme & Atmosphere
Supreme Diamond XXL uses its Gems theme as functional signaling: diamonds identify the values and collectors that matter once the feature begins paying.
The classic reel treatment keeps that signaling simple, separating value-bearing Bonus symbols from the black Diamond responsible for gathering their amounts.
Features & Win Potential
Sticky Symbols matter during the Bonus Game because collector Diamonds remain fixed while newly arriving Bonus symbols provide further values for collection.
Respins refresh vacated positions after collected Bonus symbols disappear, allowing the same fixed Diamond to gather another set of visible amounts later in the round.
Bonus & Free Spins
The Bonus Game can begin through combinations of Bonus and collector symbols, a Lucky Spin, or the Diamond Meter, according to the official rules.
During the round, up to 5 collectors may remain on the second reel, repeatedly gathering Mini, Minor, Major, or Grand Jackpot values from visible Bonus symbols.
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Compare Supreme Diamond XXL with other games
 Supreme Diamond XXL Score 49This game |  Pine of Plinko 2 Score 90 |  Ruby Royal Score 89 |  7 & Gems Score 88 |  Max Megaways Score 88 | |
|---|---|---|---|---|---|
| Identity | |||||
| Studio | Popiplay This provider has been reviewed and approved by the SlotRanker team. What does this mean? | ||||
| Released | 5/17/2026 | 12/7/2023 | 11/15/2024 | 12/8/2024 | 9/21/2022 |
| Math | |||||
| RTP | — | 96.32% | 97.11% | 96.18% | 96.37% |
| Volatility | — | High volatility | High volatility | Medium/High | High volatility |
| Max win | — | 20,000× | 10,100× | 10,096× | 139,200× |
| Format | |||||
| Reels | 5 | 5 | 5 | 5 | 6 |
| Layout | 3x5 | 5x3 | 5x3 | 5x3 | 6x7 |
| Paylines | — | 10 | 15 | 3600 | 117649 |
| Min bet | — | 0.1 | 0.1 | 0.2 | 0.2 |
| Max bet | — | 1 | 20 | 100 | 1 |
| Features | |||||
| Progressive | — | — | — | — | — |
| Wild symbol | — | — | ✓ | ✓ | ✓ |
| Free spins | — | ✓ | ✓ | ✓ | ✓ |
| Scatter symbol | — | ✓ | ✓ | ✓ | ✓ |
| Multiplier | ✓ | — | ✓ | ✓ | ✓ |
| Bonus game | ✓ | ✓ | ✓ | ✓ | — |
| Respins | ✓ | — | ✓ | ✓ | — |
Every number is shown as a delta against Supreme Diamond XXL.
Questions & Answers
Supreme Diamond XXL FAQ
Supreme Diamond XXL is a 3 Oaks slot released in May 2026.
The black Diamond collects values from visible Bonus symbols and stays fixed during the Bonus Game so it can collect again.
The official game page lists a 3x5 reelset with 15 lines.
The official page identifies the Grand Jackpot as 1000x the stake.
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