Krakatoa. A volcanic island bound to cause an eruption of luck is the one and only Krakatoa, with two levels of standalone progressive. Lucky Break®. Play Krakatoa Lucky Break Slot Machine by Ainsworth for FREE - No Download or Registration Required! 5 Reels | 30 Paylines | % RTP | Released on Nov 1. Krakatoa Lucky Break is a five-reel, payline slot from Ainsworth. Krakatoa. Erupt with excitement over the great features, including wilds, free spins with multipliers. Play the Krakatoa Lucky Break slot for a chance to win one of the jackpot prizes, as well as possible multipliers of up to x. .