Without Warning immerses gamers in a high-status scenario set in a besieged chemical plant. The title features six different characters, each offering a unique point of view and mission, immersing players in a fun narrative akin to the intense plot of the television series 24. Involving users in a continuous process, Without Warning offers a specialized cover system, as well as a variety of weapons and gadgets. Gameplay dynamically adapts to the controlled character's perspective, be it frantic combat or stealth tactics and problem-solving skills.

Choices and consequences are integral components of gameplay, as gamers' decisions determine the outcome of the story, leading to multiple possible endings. In this adrenaline-pumping environment, users must overcome not only the physical challenges associated with the terrorist threat, but also the moral dilemmas associated with their choices. As a result, the video game provides an immersive gaming experience that goes beyond traditional third-person shooters, offering users a cinematic journey filled with action, tension and the constant pressure of making important decisions in the face of looming danger.