Anyone here played Zwok before? It's a simple little game where you shuffle a character across a 2D landscape, and huck various rocks (bouncy rock, rolling rock, cluster-bomb rock, etc) at the other team. Two teams, 3v3.
The strategy of it came from being... I'm not even sure of the term, I'm going to call it simultaneous turn-based. Each turn you'd have 10 seconds to move, pick your weapon and aim your shot, without being able to see what everyone else was doing. Then everyone moves, then everyone fires, all together.
So if your opponent was a little bit clueless you could run behind them, avoid their forward-facing shot, and pelt a brick into the back of their head, then next turn duck back the other way to avoid the shot they throw backwards and... pelt a second brick into the back of their head again, classic comedy. If your opponent was decidely not clueless, it became a cat and mouse game of trying to guess where your opponent would be next turn while being as unpredictable as possible yourself.
I'm not sure how long ago it's hey-day was, but it was damn good fun. It started out with a chat box, where you could type whatever you wanted (mostly in the non-interactive portions where you were either already committed to your shot, or watching events play out - no sense wasting your movement time). Sometimes though, it would revert to a pre-written list of options... turned out that bots had been quietly added to the game, and they couldn't take part in arbitrary chat.
I think some technical issue, or possibly just declining player numbers (I really don't know how it went down, I'm guessing from what I've seen on forums) made it necessary for the game to go full-bot - every opponent is now an AI, all of the time, and there is no chat at all. It's still sort of fun if you forget that you're not playing against real people, still kinda satisfying to run rings around a "stupid" player, or land a wildly improbable shot, but the heart is gone.
The trash talk, the off-topic chatter, the psych-outs, the congratulations and the grudging respect for or from a worthy opponent. It all made it feel like time spent with friends, or at least with people. When it comes to mechanically playing the game, the bots can do a passable job of it... they're not smart, if you're any good you'll likely win close to every time, but to an untrained eye they're alright. But it's about more than just mechanics - give us the smallest wedge of potential communication or social interaction and it adds a whole extra layer on top of whatever the game happens to be.
I don't know about fighting games, don't play them, but are they really so devoid of communication with other players that no-one would notice if you swapped them out for AI? Maybe that's why I don't play fighting games...