When a user launched a trial game, the wrapper generated a unique "Product ID" based on the user's computer hardware components.
Reflexive Entertainment was a major casual game developer and distributor (known for titles like Ricochet and Big Kahuna Reef ).
To understand why the universal keygen became so ubiquitous, it helps to understand how Reflexive Arcade secured its software.
Reflexive Entertainment was founded in 1997 and became a significant name in casual game distribution. In 2004, they launched Reflexive Arcade, an online storefront offering over and 402 Mac games from various developers. Their DRM system wrapped all game installers, allowing free, time-limited trials that required online activation or an offline key for full play.