Starsector 0.97a is out! (02/02/24); New blog post: Simulator Enhancements (03/13/24)
No way is it a scam considering all the dev works
Dev is continuing apparently http://www.rockpapershotgun.com/2015/04/08/mia-limit-theorys-josh-parnell-has-gone-quiet/
hes not running, hes there working, hes just an massive idiot and he knows it, putting semi working features ahead of updating to unity 5 is going to do nothing but cause him huge problems but NOPE, lets put in more features and give himself even more work to do down the line.
No, he susing Unity alright, but he refuses to update because that would take time away from putting features in O.o.
If you look at the FAQ for Limit Theory, you will see that he is using a custom engine.