Honkai Star Rail 2003. Honkai Star Rail is an exciting mobile game that combines elements of action, strategy, and role-playing. Developed by miHoYo, the creators of the popular game Honkai Impact 3rd, Honkai Star Rail takes players on a thrilling journey through a futuristic world filled with powerful heroes, intense battles, and captivating storytelling. Here’s a comprehensive review of the game, highlighting its key features and gameplay mechanics.