There are some games that are social and multiplayer by default. MMO games, clearly, and first-person shooters based on teamwork. Even if the bots were awesome, I’d still prefer to enjoy battlefield 4 with real people. But conversely, there are some game designs and genre that are absolutely firmly SINGLE player and NOT social. City builders are one. Almost all turn-based empire games are another. Single-player games have a lot of plus-sides. You can play when YOU want to, Nobody can ‘ruin’ the game for you. You don’t need to have lots of friends with similar interests. If you get bored, you just quit, without spoiling anyone else’s fun.