CEFR RPG turns English vocabulary into a real RPG. Progress through CEFR levels A1–C2, clear castles, earn crystals, upgrade your pet, compete with players. The key difference: a word is NOT learned until you answer it correctly 3 times in a row. Mistakes go to "Kachalka" — where you work on them, then prove you know the word. 100,000+ words. 18 languages. AI-validated phrases. 54,000+ radio stations. Chrome extension for micro-learning. Free PWA. No ads. No subscriptions. https://cefrpg.eu