Touch Detective 2½ is a point-and-click mystery adventure developed by BeeWorks, released in 2007 for the Nintendo DS and later made available on Android and Nintendo Switch. The second installment in the Touch Detective series, it presents five original episodes in which players gather clues by tapping on suspicious objects and characters in the environment. Collected items and witness testimonies serve as the foundation for solving each case, requiring players to apply deductive reasoning and intuition to work through the mysteries. The core interaction model is deliberately accessible, keeping controls to a single touch throughout. Beyond the main episodes, the game includes additional bonus scenarios that expand on the primary content. The title maintains the series' light, puzzle-driven approach to detective fiction established in its predecessor.
