cross-platform play, GTA V, Steam, Epic Games Store, multiplayer, online gaming, seamless integration, shared servers, consistent experience, social features, friends list, matchmaking, cooperative missions, competitive modes, high-resolution textures, realistic cityscape, dynamic lighting, Los Santos, open-world exploration, action-packed gameplay, vehicle customization, character customization, 3D models, detailed environments, urban setting, day-night cycle, real-time shadows.