SLOT // FREE DEMO
Gemstone Jam has not gone through our rig yet. When it does, the full recorded session appears here — balance curve, hit rate, best win and the longest dry streak, published next to the official RTP above. Until then this page carries Yggdrasil Gaming's own figures and a playable demo, and nothing of ours.
Yggdrasil Gaming lists an official RTP of 94% for Gemstone Jam.
Yes. The demo on this page is the studio's own free-play build of Gemstone Jam. It uses play money, needs no account, and cannot pay out.
Yggdrasil Gaming rates it high. We have not run this title on our rig yet, so we have no session data of our own to compare.
Not yet. This page shows the studio's official numbers and a playable demo. When the title goes through our rig, the recorded session appears here — the full balance curve, hit rate and dry streaks.
