IGT bolts a four-tier mystery jackpot onto the 2012 Da Vinci Diamonds engine. Tumbling reels, 96.44% RTP, Platinum tier climbs past £20K.
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Two release years collide on one screen here. The reels run the same Da Vinci Diamonds math IGT shipped back in 2012, while a gilded Fort Knox panel on the left rolls its mystery jackpot meter in real time. It's an odd cohabitation, but it works because the original game still holds up.
You're looking at a 5×3 grid with 20 fixed lines, pay-left only, RTP locked at 96.44%. Volatility sits in the medium band. The base game's top line pay is 5,000x for five Mona Lisas, and tumbling reels let chained wins build naturally inside a single spin. No win-both-ways, no cluster math, no scatter pays. Just classic line wins with cascades on top.
The portrait gallery is the same one veterans remember. Mona Lisa pays best, followed by three other Renaissance figures (the red-hatted gentleman, the blue-bordered lady, the headband portrait). Below them sit the colored gems: emerald, ruby, sapphire, amethyst. Wild is a pink diamond and substitutes everywhere except the Da Vinci Diamonds bonus cluster, which triggers Free Spins on 3 or more landings across reels 1-3 with retriggers possible during the round.
And then there's the new layer. The Fort Knox Multi-Level Progressive stacks four jackpots vertically: Copper, Silver, Gold, Platinum. Triggering is mystery-based at the end of any base spin or after free spins resolve. Once you're in, you pick 2 safes out of 12 per tier to accumulate points toward that tier's target. Clear the target, advance. Platinum is the prize that matters, climbing past £20,000 in UK builds and into seven figures at unregulated jurisdictions. An Ante Bet (“stake up”) nudges trigger frequency higher if you want to chase it harder.
Honest take? You're paying for the jackpot panel, not the base game. The 2012 math is fine, but tumbling reels and 20 lines feel pretty thin against what Pragmatic or Nolimit ships now. The Renaissance dressing also clashes with the bank-vault aesthetic in a way that never quite resolves visually. Still, if you came for the four-tier mystery climb rather than the slot underneath, the framework delivers exactly what the marketing promised.
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