またおじいちゃんがいない - 脱出ゲーム is a free iPhone game developed by GOODROIDInc. In this game, players are tasked with finding their missing grandfather, who has mysteriously disappeared. The game revolves around searching for hidden clues and items to uncover the whereabouts of the grandfather.

The gameplay involves tapping on the screen to collect items and scrolling within the room to explore different areas. Players can use the collected items through drag and drop mechanics to progress in the game.

With its intriguing storyline and challenging puzzles, またおじいちゃんがいない - 脱出ゲーム promises an engaging experience for players. Can you find the hidden grandfather and become a fan of him? Try it out now!