Microgaming's high-volatility journey to the Emerald City — where the Book of Oz is both wild and scatter, and expanding symbols can fill the entire screen.
Book of Oz is Microgaming's enchanting take on the "Book" slot format made famous by Book of Ra, transporting the genre into the magical world of L. Frank Baum's Oz. The game captures the wonder and whimsy of the classic tale through rich emerald-green visuals, ornate golden design elements, and a sweeping orchestral soundtrack that evokes the grandeur of the Emerald City. Dorothy, the Scarecrow, the Tin Man, the Cowardly Lion, and the enigmatic Wizard himself all appear as high-value symbols, while the glittering Book of Oz serves the crucial dual role of wild and scatter.
What sets Book of Oz apart from the competition is its high volatility profile — wins are less frequent than in medium-volatility slots, but when the expanding symbol mechanic fires during free spins, entire reels can fill with the same symbol for outsized payouts that reward patience and a well-managed bankroll. The 96.50% RTP is excellent for a high-volatility title, and the Respin feature adds an additional layer of tactical depth not found in most "Book" format slots. This is a game for players who enjoy the tension of big-swing gameplay with premium return rates.
Book of Oz — Wild and Scatter in One: The magical Book of Oz symbol functions as both the Wild (substituting for all other symbols on the reels) and the Scatter (triggering the free spins round when three or more appear anywhere). Having a single symbol perform both roles means the Book is the most valuable symbol on the grid — and landing it frequently in the base game keeps momentum high between free spins triggers.
Free Spins with Expanding Symbols: Landing three or more Book symbols anywhere triggers 10 free spins. Before the bonus round begins, one special symbol is randomly selected. During the entire free spins round, whenever this special symbol appears anywhere on the reels, it expands to fill its entire reel. Multiple reels filling simultaneously with the expanding special symbol can produce wins across all 10 paylines at the same time — the scenario where Book of Oz delivers its most spectacular payouts. Free spins can be retriggered for another 10 spins.
Respin Feature: Book of Oz includes a unique Respin mechanic not standard to the "Book" slot genre. After a non-winning spin, players have the option to respin a single reel of their choice for a small additional cost. This gives you tactical control over near-miss situations and can be used strategically to nudge a potential winning combination into place — or to extend free spins retrigger opportunities.
Book of Oz delivers everything high-volatility slot enthusiasts seek: a dramatic theme, a powerful dual-function symbol, and the potential for screen-filling expanding symbol wins during free spins — all backed by a generous 96.50% RTP from Microgaming. At 96M, the game runs flawlessly on both mobile and desktop, making it just as thrilling whether you are spinning from your phone on the go or at your desk. Use your 288% welcome bonus to build your bankroll and absorb the natural variance of high-volatility play, positioning yourself for those extraordinary expanding symbol moments that make Book of Oz one of Microgaming's most exciting recent releases.
18+ | Play responsibly. Gambling can be addictive. Please play within your means.