The Great War at Sea, Volume 2 - The North and Baltic Seas - An Operational and Tactical level game of World War I Naval operations in the North and Baltic Sea. Every ship that fought in those seas for England, Germany, Russia, Sweden, and France is provided along with some U.S., Japanese, and Brazillian units. - http://www.avalanchepress.com/line_GWAS.php
The Great War at Sea, Volume 1 - The Mediterranean - An Operational and Tactical level game of World War I Naval operations in the Mediterranean and Black Sea. Every ship that fought for England, Germany, Austria, Italy, Russia, Greece, Rumania, and France is provided. - http://www.avalanchepress.com/gameGWAS1.html