Ice Protocol

5 reels × 3 rows, 243 ways, left to right. Winning symbols are replaced where they stand. Wilds land on the three middle reels.

A wild freezes in place for the rest of its spin. In free spins it stays frozen for the whole feature.

Cascades climb 1× → 1× → 2× → 3×. A spin runs six cascades at most: frozen wilds are never cleared, so a chain could otherwise feed itself.

3, 4 or 5 scatters on the first drop of a spin award 5, 6 or 8 free spins. The feature can be bought for 14.3× the bet with 5 free spins, for 21.5× with 6, or for 43.34× with 8. Each price is what those spins return on average, less the house's share: no tier is a better buy than another.

When two scatters are in view, the reels still turning stop more slowly. That is decided only by the reels that have already stopped and happens every time two are in view, whether a third comes or not: it says nothing about what the turning reels will show.

One spin, feature included, pays at most 5,000× the bet.