Join intrepid explorer Rich Wilde in his most unsettling adventure yet, Tome of Madness, a grid slot played on a 5x5 layout with cluster pays. Inspired by H.P. Lovecraft's cosmic horror, the game features ancient artifacts and grotesque entities. Winning clusters charge the Portal, unleashing special Portal Effects like Spreading Wilds and Abyss. The ultimate goal is to unlock the Other World Free Round with Mega Wilds, facing off against the slumbering Cthulhu for immense riches and an intense, eerie experience.