In the Gates of Olympus Xmas 1000 slot, you have to score at least eight symbols of the same type in view to trigger a win. This will also activate an avalanche of new icons. The action takes place on a 6x5 grid.
Check out the symbols and their values:
Crown: 50x, 25x, 10x
Hourglass: 25x, 10x, 2.5x
Ring: 15x, 5x, 2x
Goblet: 1x, 2x, 1.5x
Red Gem: 10x, 1.5x, 1x
Purple Gem: 8x, 1.2x, 0.8x
Yellow Gem: 5x, 1x, 0.5x
Green Gem: 4x, 0.9x, 0.4x
Blue Gem: 2x, 0.75x, 0.25x
Zeus: Scatter, pays 100x, 10x, 3x