Battle the mighty Cyclops in the Book of 99 slot, an ancient Greek adventure from Relax Gaming. It’s a superbly designed 5 reel, 10 payline game that comes with a free spins round where an expanding symbol fills the reel whenever it hits. This special symbol doesn’t have to appear on adjoining reels to trigger a win either. So far, so standard. What makes Book of 99 stand out is its massive 99% RTP rate.More Slots on Online Casino Ireland
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