Pyramid: Quest for Immortality might surprise you, due to its lack of Free Spins. But with the combination of the Avalanche feature, Wild Generation and Avalanche Multiplier there are plenty of big wins to be had and more than enough excitement and entertainment to be had in the game.
Avalanche and Avalanche Multiplier
Instead of spinning, the symbols fall into place in the reels, and symbols in winning combinations explode and disappear, leaving space for a second Avalanche of symbols. After 3 successive Avalanches the multiplier increases by one, up to a maximum of x10. The multiplier remains at the maximum for the subsequent Avalanches until there are no more wins.
A symbol landing on the top of reels 2,3 and 4 and is part of a winning combination, turns into a Wild symbol for the next Avalanche. Any Wild symbols located on the top of reels 2, 3 and 4 that are involved in a winning combination will not disappear, but remain being Wilds for the upcoming Avalanche.