Moonring uses natural language for interacting with NPCs and progressing the game (though you aren’t actually controlling them, and there are different gameplay elements so I’m not sure if it would fit the bill?). It uses word matching, but has a really cool system where you’ll get bubbles with suggestions based on other information you’ve uncovered (and then there’s hidden stuff you can ask/say as well).

It’s free on that note, so you could try and decide without having to invest more than time: store.steampowered.com/app/2373630/Moonring/