This is certainly an odd suggestion, and not what you’re really asking for, but makes me think of Space Station 13. It’s a janky round-based multiplayer roleplay/social intrigue game. It’s free, and the game is opensource (though not the engine), which also leads to there being many servers with unique variations. It’s cheating to suggest a multiplayer game when talking about single player natural language processing games, but using actual players is probably the easiest way to pull it off.

The reason it reminds me is because on a roleplay server, you’ve got something like 20 people, each with their job to do, talking to each other, talking on common radio, etc. - and if you’re lucky, a player playing as the station AI, complete with a (modifiable) lawset they have to follow, Asimov’s laws style. And of course, a few antagonists that have objectives to do.

If you’re curious, I personally recommend BeeStation, though there are a lot of fine choices for the server, just maybe stay away from the 18+ ones.