"Escape from the Underworld Thieves Hideout" is a mysterious adventure escape game where players aim to escape from the hideout of thieves who have snuck in for treasure. In this game, players must solve mysteries based on clues found in the room to successfully escape.

Players navigate through the hideout using arrow keys and can interact with objects by tapping on them. To progress, players must collect items and cleverly utilize them by tapping on the item list and selecting the desired object. Additionally, hints can be accessed by viewing advertisements, providing concise or detailed clues to aid in the escape.