The 20,000 League slot has all the usual jack, king, and queen emblems and custom icons, including the Shark, Treasure Chest, Captain, and Submarine. There are two wild symbols: the 20,000 League logo and the Submarine icon. The two form a winning combination and replace other symbols.
The Submarine icon has the most potential because it offers loads of free spins and multiplier wins. It does, however, only land on reel one, two, four, and five.
The 20,000 League logo only pitches on the third and middle reels and awards instant free spins. A winning combination of Captain Nemo, the Shark, and the Treasure Chest gets you instant cash.
Bonus Rounds and Free Spins
The only bonus feature, besides the wilds, is the free spins. When the Submarine and the 20,000 League logo appear on the reel simultaneously, it activates the Free Games Bonus. During this feature, you’ll get 10 free spins for every Submarine you land.