Here is the full list of all 37 Milliopoly - there are Language Quiz and Learning achievements.
Answer 8 questions correctly.
Achieve Rank S in Ranked Mode for the first time!
Achieve Rank S for the 10th time in Ranked Mode!
Gana rango S jugando el modo ranqueado solamente en español.
Gana rango S 10 veces jugando al modo ranqueado solamente en español.
Alcance o ranque S jogando o modo ranqueado somente em português.
Alcance o ranque S 10 vezes jogando o modo ranqueado somente em português.
Achieve rank C or superior 50 times in Ranked Mode!
Achieve rank B or superior 50 times in Ranked Mode!
Achieve rank A or superior 50 times in Ranked Mode!
Achieve Rank S in Ranked Mode when playing only in English.
Achieve Rank S in Ranked Mode 10 times when playing only in English.
Achieve rank S in Ranked Mode while playing only with vocabulary options selected.
Vocabulary Master Achieve rank S in Ranked Mode while playing only with grammar options selected.
Vocabulary Master Achieve rank S in Ranked Mode while playing only with reading comprehension options selected.
Achieve rank S in Ranked Mode while selecting exactly 3 languages.
Achieve rank S in Ranked Mode while selecting exactly 2 languages.
Answer a question correctly in less than 1 second.
Answer 5 questions correctly in a row in less than 5 seconds each.
Answer 100 questions correctly.
Answer 250 questions correctly.
Answer 500 questions correctly.
Select the wrong answer for the first time.
Become a millionaire.
Accumulate $100 million.
Become a billionaire
Complete 1 challenge of each language in Career Mode.
Complete 15 English challenges in Career Mode.
Completa 15 desafíos de Español en el Modo Carrera.
Complete 15 desafios de Português no modo Carreira.
Complete 15 challenges of each language in Career Mode.
Answer 300 English questions correctly.
Answer 500 English questions correctly.
Responda 300 perguntas de português corretamente.
Responda 500 perguntas de português corretamente.
Contesta 300 preguntas de español correctamente.
Contesta 500 preguntas de español correctamente.