MJ12 Detachment Agent
I am not the dev, I just share interesting tycoon/economic strategy games with other members of this community. :)
I have been following this particular game for a long time (4-5) years and I believe it is a custom engine.
You can get in touch with the dev here:
https://www.yesboxstudios.com/
Posting to their reddit would probably be the easiest.
Until we see more in-depth gameplay videos, it’s best to remain skeptical.
Me too! :) Love the retro visuals and that there seems to be novel approach to gameplay while still supporting high city population counts.