Soviet naval reactors have been used to power both military and civilian vessels, including:Nuclear submarines:
Cruise missile submarines.
Ballistic missile submarines.
Soviet icebreaker Lenin.
Russian floating nuclear power stations:
They have included both pressurized water reactors and a relatively few liquid metal fast reactors.
OKBM Afrikantov has been the primary designer of naval reactors for the Soviet/Russian Navy for more than 60 years.
Soviet naval reactors Wikipedia
'**'KPM-6 is developed by OKBM Afrikantov.