If you are looking for a CD key to activate the game, digital versions are available on modern platforms: Retail/Digital Keys : You can find GOG.com or Steam keys through retailers like ($10.81), and Missing Key Error

A CD key, also known as a product key or serial number, is a unique string of alphanumeric characters. Sierra used these keys in the late 1990s and early 2000s to prevent software piracy.

Right-click SWAT 3 in your library, select Manage , and then click CD keys .

Inserted as a separate piece of paper inside the box.

In the late 1990s and early 2000s, digital rights management (DRM) was vastly different from the seamless background checks performed by Steam, Epic Games, or GOG today. The primary method used by publishers to prevent software piracy was the physical (also known as a serial number or product key).

It includes a built-in launcher to easily manage game modifications. Install dgVoodoo 2