After returning to Lithuania, Sruoga lived in
Vilnius. However, as military tensions between newly independent Lithuania and Poland were rising (which would culminate in the
Polish–Lithuanian War), Sruoga decided to leave Vilnius and traveled to
Kaunas on foot in 1919, where Sruoga worked as the chief editor of the newspaper
Lietuva. That same year he was elected as the first president of the
Vilkolakis Theatre. There he met his future wife
Vanda Daugirdaitė-Sruogienė. Sruoga was also one of the initiators in establishing the
Society of Lithuanian Art Creators, abbreviated then as
"Liemenkūdra". As the secretary of the society, Sruoga wrote letters to Lithuanian authorities and Lithuanians in the United States regarding the establishment of opera and drama theaters, the publication of
chrestomathy of world literature, and the awarding of prizes and scholarships to prominent artists. Sruoga at that point established himself as a literary and theater critic. In 1921, Sruoga traveled to
Ludwig-Maximilians-Universität München, where he studied Slavic philology. Sruoga was also interested in German
Impressionist and
Expressionist literature. Sruoga planned on becoming a
mountaineer at the nearby mountains. Nonetheless, Sruoga continued to be a critic for the press as a means to earn money. In 1924, Sruoga received a
Ph.D. for his doctoral thesis on the relations between Lithuanian and Slavic folk songs. He returned to Lithuania that same year. On 22 March 1924, Sruoga married Vanda Daugirdaitė in the village of , after which they moved to the port city
Klaipėda. Their only daughter Dalia Sruogaitė was born in 1927. Originally, Sruoga decided to move there to write a
libretto commissioned by
Jonas Žilius-Jonila. For a few months, Sruoga worked on the editorial board of the local state-established news magazine. In autumn, Sruoga moved to back to Kaunas. Until 1940, Sruoga worked at the faculty of humanitarian sciences of the
Vytautas Magnus University, where he lectured on Russian literature and the history of theater as a
docent. During this time, Sruoga created what is considered his most mature works of literature, such as the historical plays
Milžino paunksmė (1932),
Baisioji naktis,
Radvila Perkūnas, the allegorical children's play
Aitvaras teisėjas (1935),
Giesmė apie Gediminą (1938), among others. During his fifteen years of work at the university, Sruoga published fourteen fiction and science books. He also briefly belonged to the
Lithuanian Writers' Union. In 1932 Sruoga became a professor. Sruoga also published two volumes on the history of Russian literature in 1931–1933. ==Life during occupation==