Opal Fruit Big Time Gaming’s Opal Fruits is an online slot game. It offers 5625 ways to win, a 96.75 percent RTP, and a top prize of 36,600x. Landing the letters “OPAL” on the reels activates the free-spins feature. Software Provider Release Date 01/1970 RTP 96.75% Volatility Medium Reels 5 Paylines 5,625 Max Exposure - Min Bet 0.1 Max Bet 20 Max multiplier 36000x