Book of Tut Megaways Slot by Pragmatic Play

Six reels shift between two and seven rows on every spin, shuffling the way count anywhere from 64 to 117,649. A random expanding symbol can trigger during base play: one symbol is selected after the reels stop and stretches to fill every position on the reel it occupies. On a high-row spin, a single expanding symbol hitting two or three reels can cover dozens of positions at once.

Three or more Book of Tut scatters award 10 free spins, and one symbol is chosen at the start of the round to serve as the expanding symbol for all 10 spins. That symbol expands on every reel where it appears, every spin, for the entire round. Landing three more scatters adds another 10 spins without resetting the chosen symbol. The persistent expansion turns otherwise small symbol hits into full-reel coverage, and on a 7-7-7-7-7-7 configuration the effect is dramatic.

An ante bet increases the stake by 25% and raises the scatter frequency. The 100x buy option opens free spins directly. With the ante active, the max win cap drops from 10,000x to 8,000x - a trade-off that matters at the top end.