The game is very lightweight and can run on almost any modern PC: Windows XP/Vista/7/10/11. Processor: 1.2 GHz or faster. RAM: 256 MB. Storage: ~40 MB of free space. Dinertown Detective Agency Walkthrough - Forum: Main Page

Since the game was released in 2009, it has become "abandonware" on some sites, but it is also available for purchase on modern platforms:

Most casual gaming sites like Big Fish Games still host a "Free Trial" version that lets you play for 60 minutes before requiring a purchase. Game Overview & Story

Look for items with small icons next to them in your list. These require a specific tool: Magnifying Glass: Used for tiny clues.

Used to collect liquid samples or chemical reagents.

Used on surfaces like glass or metal to find prints.