I wish Zach would start making games again. :-(
He never stopped, he’s just under a different label: https://coincidence.games/
They’ve released two Zach-likes, Kaizen and UVS Nirmana.
Blatant self promotion, but if you want the full story, he chatted to me about it on Software Engineering Daily after the release of Kaizen: https://softwareengineeringdaily.com/2025/12/18/designing-in...
The official "spiritual successor" seems to be Coincidence studio - their games in the genre being "Kaizen: A Factory Story" and the recent "U.V.S. Nirmana".