28th April 2026 – Yggdrasil turns up the excitement with Gemstone Jam, the third and latest title built using Game in a BoxTM technology.
Now Live: Gemstone Jam Elevates the Classic Slot Experience
Built for players who love classic slots, Gemstone Jam stands out by combining the familiarity of traditional land-based slot machines with the pacing, tension, and spectacle of a live game show experience, driven by immersive sound design and high-impact win moments.
The game features iconic symbols like cherries, 7s, golden bars, and a Diamond Wild, which unlocks a 10,000x max win when all Diamond Wilds align across the paylines.
Players can expect a high-volatility experience, featuring a 30% hit rate and up to 9 dynamic paylines, including horizontal, vertical, V-shaped, and diagonal lines.
Two core mechanics enhance the experience: The Nudge, which adjusts reel positions following near-miss outcomes to reveal wins; and The Big Win Countup, a four-step celebratory sequence that escalates through 20x, 40x, 80x, and Max Win.
The dynamic audiovisual package creates an immersive gameplay atmosphere, using near-miss audio to build tension and explosive cheers that create a sense of reward with every spin.
Ricardo Viana, Executive Creative Director at Yggdrasil, said: “In Gemstone Jam, players can expect a fusion of virtual mechanics with the emotional visual highs and lows found in a modern-day game show.”
Powered by Yggdrasil’s AI-supported slot development platform, Game in a Box™, the game’s production time was reduced by 50%, enabling faster iteration, smoother workflows, and a more efficient path from concept to launch.
Tomasz Kowalik, Product Director at Yggdrasil, explained: “Game in a BoxTM basically let us play around with the game math way faster and tested new ideas on the fly. It also made backend development much smoother, so overall we sped up production by about 50% and could focus more on making the game feel just right.”