About Gemstone Jam
Gemstone Jam is a new high-volatility, 3x3, classic and fruits-themed video slot from Yggdrasil. It pays across 9 lines, and the feature set includes multipliers, jackpots and nudges.
Yggdrasil lists a return to player of 96% (operators can choose versions from 90.5% to 96%). Expect long quiet stretches between big hits, so bankroll size matters more than usual. It was released on 28 April 2026.