Book of Arcane 100 Slot by Just Slots

Multipliers Up to 100x on Ten Lines

The grid is pure Book of Ra lineage - 5 reels, 3 rows, 10 fixed paylines, wins left to right. The Book symbol doubles as Wild and Scatter. Three or more Books trigger free spins. Everything about that formula is 20 years old. What's new is the multiplier layer.

Every expanding symbol activation - in both base game and free spins - carries a multiplier between 1x and 100x. That's where the "100" in the title comes from, and it's what pushes the max win to 100,000x. The theoretical ceiling: five fire wizards filling all reels with a 100x multiplier applied. Five fire wizards pay 100x across 10 lines (1,000x total), times the 100x multiplier. Clean math, absurd number.

Three Gamble Wheels Before Free Spins

Trigger free spins and the game doesn't just hand you 10 spins with a random expanding symbol. It opens a book, assigns your symbol and multiplier, then offers three gamble wheels.

The Symbol Wheel upgrades your expanding symbol one tier up the paytable. The Multiplier Wheel bumps your multiplier higher. The Combined Wheel gambles both simultaneously. You keep spinning wheels until you collect - or until you lose. A failed gamble forfeits the entire bonus round. No spins played, no consolation prize. Back to base game.

No other Book of slot carries this kind of binary risk at the trigger point. Book of Power gives you a single gamble choice between regular and enhanced free spins. Book of Shadows lets you pick between expanding symbol options. Neither wipes your bonus on a loss. The mechanic here is closer to a double-or-nothing coin flip, except you control how many times you flip.

Expanding Symbols and Three Buy Tiers

During free spins, the selected symbol expands to fill entire reels vertically whenever it appears. Standard Book of mechanic. The multiplier applies to all wins generated by that expanded symbol. Retriggers fire when three or more Books land again during the round.

A smaller version of this feature activates randomly in the base game too. A book opens, picks a symbol and multiplier, and that symbol expands for the current spin. It's infrequent, but it gives the base game something most Book of titles lack entirely - a reason to watch the screen between bonus triggers.

Three buy bonus options skip the wait. Tier 1 at 80x buys 10 free spins with no multiplier floor - you could start at 1x. Tier 2 at 250x guarantees a minimum 2x multiplier. Tier 3 at 1,050x guarantees 10x or higher. The gamble wheels still appear after every buy, so purchased entry stacks with optional risk. At a €1 bet, Tier 3 costs €1,050 for a shot at returns that could reach six figures if the gamble wheel cooperates.

Strong Art, Thin Grid

Three wizard characters anchor the paytable - a fire mage clutching a glowing orb (highest pay, 100x for five), an ice sorcerer with a crystal ball, and a green witch casting emerald spells. Mid-tier symbols are a jeweled wizard hat, gem-encrusted rings, and golden scrolls. Royals fill the low end (A, K, Q, J) in ornate fantasy frames. The castle library backdrop has genuine depth, with enchanted books floating past arched windows and moonlight filtering through stone columns. For a studio on its third release, the production quality is well above par.

The weak spot is the same one every 10-payline slot shares: thin base game returns. Five Jacks pay 4x your total bet. Five Queens pay the same. The random base game expanding feature helps, but between activations the grid stays quiet. Just Slots has two Book of titles in its catalog now (Book of Abyss followed six months later with a 150,000x ceiling), and while the feature design punches above expectations, the mathematical foundation underneath is as conservative as the genre allows.