metal code lock, secure, rust texture, weathered, attached to wooden door, survival game setting, post-apocalyptic environment, overgrown vegetation, abandoned buildings, cloudy sky, diffuse lighting, midday, first-person perspective, detailed environment, realistic, immersive atmosphere, worn paint, keypad buttons, numbers visible, sturdy design, safety feature, zombie survival theme, desolate landscape, chain link fence, distant gunfire echo, survival gear, gritty texture, 3/4 view, atmospheric mood lighting.