Although it has a nice concept, it gives too much information dump at once. It’s not something that I expect for an educational game, which is supposed to be fun and lighter compared to textbooks.
Don’t worry, we’ll gather all those buttons in no time!
Another tool to help beginners? Count me in.
Древняя Русь (Ancient Rus) is a short quiz game made my Vladimir Maslov, an author of a few other indie games (True or False, Pythagoria and others).