For Cortex Prime, there's the "Prime Directive" and "To Boldly Go" hacks.
Huh, I can't find the original links either (though I did find this as a third one https://toadstomper.com/files/star-trek-prime-characters.pdf). I've shared them up here: https://drive.google.com/drive/folders/1FM0ZgCRnhSv7PgtiszkMidsISGnxonXT?usp=sharingThe easily findable versions of "Prime Directive" and "Boldly Go" are not Cortex games. do you have links to Cortex versions?
Was going to mention this. Here's the link by the same guy who wrote Blades in the Dark.Holy crap. I can't believe I forgot the best unofficial Star Trek game of all time.
Lasers & Feelings. It's a free one-page RPG. It's utterly fantastic and captures the feel of Star Trek better than any official game I've ever played.