PRISM: Guard Shield is a first person 3D shooter that contains a unique blend of stealth operations and fast action game play. The game focuses on the unconventional application of new and emerging weapons and surveillance technologies in the war against terrorism.

PRISM takes place in the near future with the player becoming the newest member of a highly secretive homeland defense unit known as PRISM. PRISM: Guard Shield focuses on familiar locations in the US such as Washington, D.C. and San Francisco, CA. When terrorist activities are suspected or potential targets are identified, players are called into action.