Sea of Tranquility is a mystic-themed video slot with 5 reels, 30 paylines and an added Close Enough feature that is found nowhere else in the WMS’s game portfolio. The symbols and a deep space picture behind the reels look like a dream scene with a flying ship, fireflies in a bottle, an unnaturally green comet and a beautiful young magician. All of this interweaves into an exciting video slot with expanding wilds, big symbols and powerful free spins. Whether a casual player or high roller, you will find the bet options appealing since the minimum and maximum stakes are $0.3 and $150 per spin.

Lady, Ship and Owl are big regular symbols that occupy three symbol positions and can stop on the reels partially or fully. During a free spins feature, the big symbols serve as wilds for each other. Besides, these are high-paying symbols that award up to x50.

Bonus features

Green Comet is an expanding wild symbol and the biggest payer in the slot. Hitting five of a kind awards x1000 times a line bet, which is equivalent to $5000 if you play at the maximum acceptable stake.

The Close Enough feature may require some explanation. Each of the five reels has dimmed wave-shaped areas at the top and bottom. Looking closely at these dimmed areas, you will see partially visible symbols that continue the symbol array on each reel. The Close Enough feature does not affect any regular symbols but any wild symbol that lands within the Close Enough area at the top or bottom will expand to cover a corresponding reel. This principle is in some way analogous to the Nudge feature available in some classic 3-reel slots.

A free spin round is triggered by 2+ Sleeping Moon symbols scattered anywhere, including the Close Enough areas. The number of free spins depends on the number of scatters and ranges between 7 free spins on two scatters and a stunning 50 free spins on five scatters. The outcome of free spins is subject to an exclusive Bonus Guarantee feature that ensures you will obtain at least x5 times a total bet.