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