Tales of Grimm-Thai is an idle RPG game that takes you on an adventure in the dark fantasy world of Oz. Developed by LNN Holding Limited, this game is highly acclaimed for its immersive storyline and gameplay. The game allows you to customize your hero and fight against enemies with just a few taps on your iPhone.

The game features a training system that helps you prepare your hero for battles by enhancing their abilities and strengths. Players can explore the dark corners of Oz and uncover its secrets by playing various game modes. The game also offers a competitive edge by allowing players to compete against each other and earn rewards and titles.

Overall, Tales of Grimm-Thai is a fascinating idle RPG game that provides an engaging experience to players who love dark fantasy games. The game is free to play and available for download on the App Store. However, players should be aware of the game's privacy policy and terms of use before playing.