Coastline is a dynamic urban map mod for Insurgency: Sandstorm, offering players a blend of intense close-quarters combat and expansive open areas. Recently updated, this mod introduces a highly detailed environment and improved gameplay mechanics, ensuring a more immersive experience. The map features two distinct versions: a day setting with two sandstorms triggered by gameplay events and a night version set during an air raid, enhancing the tactical challenges players face.

Notable enhancements include optimized AI behavior, additional cover points, and destructible objects that deepen the strategic gameplay. Players can explore various scenarios such as Push and Checkpoint, with specific commands for loading different lighting conditions. Custom sounds and visual effects further enhance immersion, although some minor bugs have been noted, which are under review. Overall, Coastline significantly enriches the gameplay of Insurgency: Sandstorm.