Sangoku Rensenki: Omoide Gaeshi, which is a fan disc of the 2010-released Sangoku Rensenki: Otome no Heihou!, first launched for PC in June 2013 in Japan, followed by PS Vita and PSP in February 2016. Gakuen Rensenki, which is based on the popular bonus drama CD of the series, launched for PC in October 2017.
The original Sangoku Rensenki: Otome no Heihou! was released for Switch in November 2018 in Japan, after being originally released for PC in March 2010, and ported to PlayStation 2 in June 2011, PSP in July 2012, PS Vita in April 2013, and Android in September 2013.
Visit the teaser website for the collection here.