creature, facehugger, Half-Life 2, alien, detailed texture, segmented legs, gripping action, mechanical design, sci-fi, dystopian environment, City 17, dark atmosphere, decaying buildings, headcrab, glossy exoskeleton, articulated limbs, dynamic pose, ominous shadow, dim lighting, close-up shot, high-resolution, rusted metal surfaces, concrete rubble, eerie mood, 3/4 view, atmospheric fog, advanced rendering, cinematic angle, sharp focus, desaturated colors.