DEGEN Studios launches Book of Dizzy with expanding reels and a pre-bonus gamble

DEGEN’s latest release keeps changing its own layout mid-spin, and lets players risk their bonus round for a stronger version of it.

DEGEN Studios has launched Book of Dizzy, a slot that starts on a 5×3 grid with 10 paylines, can grow to 5×5 and pays up to 10,000x, the studio said on 10 November.

Expanding reels and Expanding Symbols

The reels can randomly expand to 5×4 or 5×5 on any spin, adding paylines as they grow. Separately, a random symbol can become an Expanding Symbol, covering whole reels when the feature triggers and still paying when non-expanded reels break up the sequence.

Both features can land on the same spin, changing the size of the grid and the symbols on it at once.

Three free spins levels set by Wild Scatters

The number of Wild Scatters decides which version of the free spins round players get:

• Three, Open The Book: one Expanding Symbol stays active for the whole bonus.
• Four, Turn The Page: the reels grow to 5×4 and one symbol is removed.
• Five, Master Spellbook: the full 5×5 grid opens, and the highest-paying premium symbol is added as a second Expanding Symbol.

A gamble before the free spins start

Before the first free spin, players can use the Pre-Bonus Gamble to increase reel height, remove low-paying symbols or upgrade the Expanding Symbol. Each enhancement is gambled separately, and a single failed attempt forfeits the bonus. The three options mirror what the higher free spins levels give automatically: taller reels, fewer symbols and a stronger Expanding Symbol.

Danny Gordon, Head of Studio at DEGEN Studios, said the game is designed to keep changing the reels, sometimes with both features on one spin.

‘The Pre-Bonus Gamble is where players get to play sorcerer themselves. They can make the reels bigger, clear out weaker symbols or cast a stronger Expanding Symbol into play, but every extra spell comes with the risk of losing the lot.’

Gordon added that by the time Master Spellbook opens, the game ‘has pretty much torn up its own rulebook’, with bigger reels, more Expanding Symbols and fewer symbols in the way.

DEGEN’s release schedule

Book of Dizzy comes less than a week after DEGEN launched Loot Box Legends with switchable RPG and FPS modes on 4 November. Its seasonal entry for October was Carnival of Freaks, which sat alongside pirate, vampire and spirit-themed titles among the new Halloween slots.

In July, DEGEN released Hades Hellfire, a high-volatility scatter-pays slot. Aggregator Hub88 also partnered with the studio in March to take slot titles such as Raider Riches and Rave Riot to its operator network.

About DEGEN Studios

DEGEN Studios is an online slot developer that designs feature-led games for players looking for unconventional mechanics. Its 2026 releases include Zoomania, Hades Hellfire and Loot Box Legends, and its games reach operators through distribution partners including Hub88.

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