Silent Run is a 25-payline online slot game set in the milieu of a submarine battle. In actuality, things are pretty mellow in the base game, going along with the standard gameplay of the typical slot. Players’ interest may be piqued in the Echo Bonus Game, triggered by landing a single echo bonus symbol in the middle reel.
In this video bonus round feature, players use virtual torpedoes to blow up three to five enemy ships, with increasing bonus multipliers on each prize revealed. A “Premium Ship” worth thousands of coins is hidden among the mini-armada – think “Battleship” – to really make the big win possible.