Metro Redux, post-apocalyptic, atmospheric, first-person shooter, video game, remastered, high-resolution textures, enhanced lighting, improved physics, immersive, underground tunnels, Moscow Metro, survival horror, stealth, narrative-driven, single-player campaign, dynamic weather, day-night cycle, detailed character models, gas mask, scavenging, mutated creatures, dystopian society, resource management, weapon customization, 4A Engine, ray-traced lighting, volumetric fog, panoramic view, desolate landscapes, abandoned stations, eerie, realistic, gritty textures, enhanced AI, survival mode, Spartan mode, voice-acted dialogue, ambient soundtrack, tension-filled gameplay, moral choices, branching storyline.