The Book of Kingdoms slot offers two engaging features that are meant to boost your winnings in no time. On one hand, we have the Money Respin Feature that can award one of the three jackpots and on the other hand, we have the Free Spins round that comes packed with an expanding symbol.
The Money Respin Feature
Trigger this feature by landing at least 5 Silver Coin Symbols on the screen. The round starts after the game pays out all the winning combinations on the screen, leaving only the Money Symbols that triggered the round. Thus, during this feature, you will see no sultans or monkeys hitting the reels. The screen will be filled only with shiny silver coins.
The Money Respin Feature starts with three respins, with every Silver Coin Symbol that hits resetting the number of respins back to 3. Moreover, all Money Symbols that land stay on the screen until the end of the round. You will play this feature until there are no more respins left or until the screen is covered in Silver Coin Symbols.
At the end of the round, the game adds the values of all Money Symbols present on the screen and pays out.
The Free Spins Feature
You need to land at least 3 Bonus Symbols to activate this round. Before the feature starts, the game selects a special symbol that will expand during the next 5 Free Spins awarded. All symbols can become an expanding symbol, but the Bonus and the Money ones.
During the Free Spins, the expanding symbol will cover the entire reel, giving you the opportunity to form new winning combinations. The expanding symbols pay according to the paytable even on non-adjacent positions. Keep in mind that for the symbols to expand, there need to be enough symbols to form a win on the grid.
The Book of Kingdoms slot also offers a retrigger option. Hit three or more Bonus Symbols on the reels during the Free Spins round and the game awards five new Free Spins that will be played with the currently selected expanding symbol. The game also lets you retrigger this feature as many times as you like.