A recently released Grand Theft Auto 5 mod allows the player to use a microphone and actually talk to the NPCs with the aid of AI.

Grand Theft Auto 5's world is expansive, detailed, and filled with chatty NPCs. But frankly, they aren't chatty enough. It's simply not sufficient for the denizens of Los Santos to loose trite one ...

Developer Fallen Tree Games confirms the release date for its Grand Theft Auto-style game, where players take on the role of a cop.