Play Book of Monsters Slot at Slingo | Online Slots and Casino

Dive into the playful chaos of Book of Monsters from Pragmatic. This 7x7 cluster-pays slot drops you into a glowing cave full of cheeky, wide-eyed monsters. Match at least five symbols in a cluster for potential rewards, while blue cave vibes flip to electric orange during bonus free spins. There are no wilds here, but look out for random Fat symbols, which can fill big chunks of the grid. Trigger free spins and watch as a Fat symbol grows bigger with each collection, unlocking extra spins as you level up. You can choose to gamble for different symbols or more spins, or use the option to enter the bonus round. Book of Monsters’ energetic style is suitable for a mobile session, whenever you choose to play. Always play responsibly.