I highly recommend you check out the game Satisfactory. As someone who has over 2000 hours in Boundless, Satisfactory scratches many of the same itches Boundless once did. The building isn’t going to be as detailed but you can get pretty crazy with the builds nonetheless and there’s a lot of depth. What really sets Satisfactory apart though is the crafting and the automation. I would argue that Satisfactory, which is still in EA and only on update v0.4 as of this writing, has more depth in EA v0.4 than Boundless does right now after 240ish updates..
If anybody is interested, I can stream it and talk you through some things. Just let me know if there’s any interest and have fun!