You can use any character from any alphabet when you create the game.
Additionally, users can access the Educaplay games interface in 23 different languages: English, Spanish, French, German, Italian, Portuguese, Greek, Japanese, Chinese, Russian, Dutch, Polish, Swedish, Turkish, Slovenian, Estonian, Czech, Catalan, Basque, Galician, Aragonese, Asturian and Indonesian.
You can set the language of the game in the Information tab on your editor.