"Русский язык - тест" is a free educational game developed by DeBIA Limited for Android devices running on Android 9.0. The game aims to help users test their knowledge of Russian grammar and vocabulary. The game raises the question of whether an individual who has learned Russian as a foreign language can consider it their native language.

The game is not only a test of grammar and vocabulary but also a test of cultural knowledge and historical realities. The game is easy to play, and there are no overly complicated questions. However, each question requires careful attention. The game covers the majority of Russian grammar rules, making it an excellent tool for testing your grammar skills and preparing for the Russian language exam (EGE).

Overall, "Русский язык - тест" is an excellent tool for anyone looking to test their Russian grammar skills and vocabulary. The game is not only educational but also fun and engaging. It is an excellent way to improve your Russian language skills and test your knowledge of Russian grammar.