Okay, so I’ve got some pretty solid gameplay. Almost as originally anticipated, though introduced minerals as primary driver/progress.
Few things remaining — achievements (these are kind of like levels / secondary driver) and a title. Probably tidy up a few other loose ends as well if I get time.
Concerned about how obvious the math is — game developer’s conundrum I guess. Right, more children, more regular work and then achievements and such later. Might revisit the music and sound as well.