Esperanto Etymology From ludo + teorio. Pronunciation IPA(key): [ludoteoˈrio]Rhymes: -ioHyphenation: lu‧do‧te‧o‧ri‧o Noun ludoteorio (accusative singular ludoteorion, plural ludoteorioj, accusative plural ludoteoriojn) game theoryWikiwand - on Seamless Wikipedia browsing. On steroids.