Your article is quite interesting, I want to say that developing a game for Telegram requires good knowledge of API and experience in designing game processes. You can start with prototypes based on bots. By the way, if you need help at any stage - from idea to release, I recommend Arrible. They offer a full cycle of game development for Telegram. Here is the link: https://arrible.com/services/telegram-game-development/ , you can get support from them on monetizing the project.