Thunder Wheel Demo Slot by Slotmill Free Play

Thunder Wheel is an online Slot from Slotmill.

Quick Facts

- Layout: 4 reels x 4 rows

- Paylines: 256 ways to win

- Key mechanics: Roaming Wilds, Expanding Wilds, Thunder Wheel feature, Burst Mode

- Special symbols: Wild, Bonus Scatter, Thunder Wheel symbol

How the Game Plays

Thunder Wheel is a visually striking slot set atop the mythical mountain of Olympus, centered on the tales of Greek gods and legendary creatures. It uses a 4x4 grid with 256 ways to win, where combinations are formed by landing matching symbols on adjacent reels starting from the leftmost position. The symbols include ornate stone carvings of Medusa, Cerberus, and the Minotaur, alongside high-paying symbols representing powerful deities. During any base game spin, standard Wild symbols can randomly expand to cover areas up to 3x3 in size, significantly increasing the potential for multiple winning combinations.

Free Spins Explained

Landing three Bonus symbols triggers the Free Spins mode, which introduces a 1x1 Roaming Wild to the grid. This special symbol changes its position with every spin. By collecting lightning symbols throughout the round, the Roaming Wild can grow in size at specific thresholds, eventually expanding up to a 4x4 block that covers the entire play area. Each time the wild expands, the game awards additional spins to extend the feature.

Thunder Wheel Feature Explained

The namesake Thunder Wheel feature is activated by landing at least two specialized wheel symbols. This bonus game consists of four concentric rings containing various multiplier values. The number of triggering symbols determines how many rings are initially unlocked, though landing on a zero allows the player to advance to the next inner tier. The innermost ring holds the highest rewards, with the potential to award an instant prize of up to 9,999x the bet.

Click the Play for Free button to load the Thunder Wheel demo, test its features and payouts and decide if it is a game you enjoy.