Lekta's a language puzzle game that generate a fresh language each time; the Ray Smashfoot series are comics and The Cocktail Party's a silly twine game I made to help people revise child language development. All the Ray Smashfoot episodes stand alone, don't worry about starting at the start.
In my day job I'm an English teacher - I used to work at the Survey of English Usage and I presented at the British Library/UCL's English Grammar Day in 2022.