World Of Warships, the naval free-to-play competitive MMO developed by Wargaming, has added submarines to its ranked multiplayer mode. Submarines will enter ranked playlists in the upcoming 0.10.7 patch, which releases later this week (August 12). The submergible warships have been a part of World Of Warships for sometime, as the developers initially announced submarines in 2019. Since then, submarines have gone through a number of testing periods with special servers and a submarine battle mode. Information gathered through each testing phase resulted in a final beta test earlier this year in May.