Gems Bonanza, an 8x8 cluster-pays slot
Spins land on an 8x8 grid of Aztec gems and treasure, and wins come from clusters rather than paylines. A win forms when at least 5 matching symbols connect horizontally or vertically. After each win, the winning symbols disappear and the grid refills, so one spin can chain several wins. The grid holds seven gem symbols, from red rubies to blue gems.
A win on a coloured mark can trigger one of five spin modifiers: NUCLEAR, WILD GEM, SQUARES, COLOSSAL SYMBOL or LUCKY WILDS. Collecting 114 winning symbols in a base spin starts Gold Fever, a five-level bonus. Each level plays all five modifiers once, in fixed order, while the win multiplier rises from 2x to 10x. Wild, Symbol Collection and Tumble complete the feature list.