My understanding is that Alter Ego was ported into a browser game using an old version of ChoiceScript by Dan Fabulich, before the formation of Choice of Games LLC. There’s a bit of chat about it on the forums but not a lot recently.
@Jacic made Lost Ones for sub-Q Magazine. Other than that I can’t think of anything that’s finished. There are a couple of unfinished games - Walker’s Rift by Verity V Lee for IntroComp, The Wedding Party by me for the Bring Out Your Dead jam, both from a few+ years ago. There’s not a huge amount of ChoiceScript that isn’t published here, due to the licencing rules.