Without Warning is a third-person shooter action game released in 2005 for the Xbox and PlayStation 2. The game was developed by Circle Studio and published by Capcom. It places players in the midst of a counter-terrorist operation, with the gameplay unfolding from the perspectives of six different protagonists, including a special forces operative, a civilian, and a firefighter. The gameplay combines shooting mechanics with time-sensitive missions and puzzles, set in a chaotic hostage situation within a large facility.