Great Reef is an online slot game by Pragmatic Play that features an underwater theme with various sea creatures. The game has a 5x3 grid with 25 paylines, and symbols that include sea turtles, starfish, and various fish. The game also features a free spins bonus round that is triggered by landing three or more scatter symbols. During the free spins round, players have the chance to earn additional free spins and win multipliers. Additionally, the game has a "Pearl Bonus" feature that is triggered by landing three or more bonus symbols. During this feature, players select pearls to reveal cash prizes. Finally, Great Reef features a "Wild" symbol, which can substitute for any other symbol in the game, except for the scatter and bonus symbols.