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Features Thunder of Olympus is a 3x5 online slot from Booongo, released in September 2020, with 25 paylines and a Greek mythology theme. The reels feature ball lightning symbols, mythological heroes and Olympus imagery. Players can use the demo version to play for free and practice before playing for real money.
The game is built around a Hold and Win bonus round. Collecting at least six ball lightning symbols triggers the hold phase, where respins continue as new ball lightning symbols appear. Each additional collected symbol creates another win, and filling all 15 positions unlocks the Grand Jackpot, worth up to 1,000x the bet.
Free spins start when three scatter symbols land on the reels. In this round, only high-paying symbols appear, increasing the chance of larger payouts and retriggering the Hold and Win feature. Thunder of Olympus also includes a bonus game element and is presented with themed graphics and sound effects.
