Book of Amigo Slot by Amigo Gaming

One book symbol pulling double duty as both wild and scatter is the defining trick of every "Book of" game, and this Western-themed version follows the template faithfully. The gold-covered book with its star badge substitutes for every symbol on the paytable during regular spins, filling gaps in combinations the same way any standard wild would. But it also triggers 10 free games when three or more land anywhere across the grid - scatter pays get added on top of whatever line wins come through at the same time.

Dark saloon wood panels and bottle-lined shelves set the backdrop, all warm amber and brown tones that lean into the dusty frontier look. Four character symbols sit at the top of the paytable - a mustachioed sheriff in a wide-brimmed hat, a bald bandit gripping a knife, a gunslinger in a blue coat, and a woman in green. Below them, the card ranks (A, K, Q, J) are rendered in ornate gold-trimmed lettering, purple and blue and orange, with enough detail that they don't feel like afterthoughts. The whole grid sits inside a wooden frame styled like a saloon bar counter.

Free games are where the one real mechanical wrinkle lives. Before your 10 spins start, the game randomly picks one symbol from the paytable as the Special Expanding Symbol. During those free games, whenever enough of that chosen symbol land on a reel to form a winning combination, they stretch vertically to fill all three positions on that reel. The expansion is conditional - if covering the full reel wouldn't produce a payline win, nothing happens and the symbols stay where they landed. Get the sheriff selected as your expanding symbol and land him on three adjacent reels, and he fills those reels top to bottom for wins across all 10 lines. Three more books during free games retrigger another 10 spins with a fresh expanding symbol selection.