ES04R is a free-to-play room escape game developed by 58 WORKS, available on the Android platform. The game starts with the player waking up in an unknown room without windows, and the objective is to escape by finding items and solving puzzles.

The game's controls are simple and easy to understand, as players can navigate the game by just tapping on the screen. The game also has an auto-save feature, which is great for players who want to take a break and resume their progress later. Additionally, the game has different difficulty levels that players can choose from, making it accessible for both beginners and experienced players.

Overall, ES04R is a fun and challenging adventure game that will keep players engaged and entertained. It's a great game for anyone who is a fan of escape games and is looking for a new challenge.