multiple companions, Fallout 4, romantic relationships, player character, flirtatious dialogue options, affinity system, unique companion quests, post-apocalyptic setting, Boston wasteland, immersive gameplay, dynamic interactions, non-player characters, NPC reactions, moral choices, branching storylines, emotional depth, character development, realistic textures, atmospheric lighting, detailed environments, third-person perspective, action role-playing game, Bethesda Game Studios.