Book of Vikings Slot by Pragmatic Play

Before the free spins start, a random symbol gets picked to expand. That's what everything hinges on here. Land three or more Book scatters anywhere on the 10-line grid and you get 10 spins. The selected symbol fills whichever reel it touches from top to bottom - so if the Viking King gets chosen and lands on three reels at once, you're looking at 500x per line across multiple paylines simultaneously.

The Viking King is the one to hope for. His five-of-a-kind line pay sits at 500x, which is massive for a single payline hit. Shield Maiden pays 200x, and the two mid-tier Viking women both pay 75x. Card values (A through 10) sit between 10x and 15x for a full line. With the expanding mechanic, even those lower symbols stack up fast when they carpet two or three reels.

Retriggers have no cap. Three more Books during the bonus add another 10 spins with the same expanding symbol still active. The buy bonus costs 100x and drops you straight into the round with a random pick - no waiting for scatters. Two Book symbols share the same visual (that golden leather-bound tome with the clasp) but split duties between wild substitution and scatter triggering, which is standard for Book of Kingdoms and the rest of Pragmatic's Book lineup.

Purple twilight sky over misty Norse mountains, Celtic knotwork carved into the stone reel border, gold-and-silver card symbols with a medieval weight to them. The character art leans into detailed portraits rather than cartoon styling - braided hair, leather armor, a horned helmet on the king. It looks darker and moodier than most of the Book series entries.