
On 3 October 2019, the results of the first beta-testing period were published. Thousands applied for the beta, but only a lucky few would be accepted to participate in the first-ever trial of submarines in World of Warships. The video walked through the process of enrolling in the beta test of the upcoming submarine update. Six days later, Wargaming published a short video on YouTube regarding participation in a beta test. They also published a detailed Q&A article related to the beta period along with a video. On 12 September 2019, Wargaming, the developers of World of Warships, finally announced the beta test. As expected, WoWs fans loved it and immediately began asking about beta testing.

After a short dev blog post about planning submarine testing, World of Warships released a cinematic trailer on 21 August 2019 – Submarines Are Coming! Along with the trailer, they shared a detailed article about their testing plans, first-comers, main features, countermeasures, and more.
