male protagonist, Atomic Heart game, muscular build, combat stance, retro-futuristic soldier uniform, leather boots, robotic arm, intense gaze, short brown hair, light stubble, action pose, wielding energy weapon, metallic textures, detailed armor, dystopian environment, abandoned facility, overgrown vegetation, rusted structures, eerie atmosphere, dim lighting, dynamic angle, wide shot, atmospheric perspective, desolate mood, high-resolution textures, advanced particle effects, dramatic shadows.