post-apocalyptic setting, Moscow Metro, dark tunnels, atmospheric lighting, gas mask, survival horror, first-person shooter, mutated creatures, scavenging for supplies, stealth gameplay, enhanced graphics, improved textures, reworked character models, dynamic lighting, remastered sound, Redux version, original version comparison, detailed environments, immersive experience, 3/4 view, atmospheric composition, ambient occlusion, high-resolution textures, detailed weapon design, improved AI, narrative-driven, desolate atmosphere, underground exploration, dystopian society, enhanced visual effects, soft shadows, realistic reflections, high dynamic range, gritty textures.