Loved the original Nimin as well. It defined my enjoyment for systemic interactions - I loved the notifications about bodily changes and weight, and really enjoyed maxing out eggs with the pseudo-dragon lady (can't even recall her name, it's been too many years). These systems also exist in Trials in Tainted Space somewhat, but overall I feel like Fenoxo's games have become bloated and wordy, losing their focus on the gameplay and gradual transformation I fell in love with. Of similar vintage is AnonymousMan's Cursed and Cmacleod's Slave Maker 2. That really was a golden age for this kind of content. There have been some upstarts over the years, but nothing has come close to the original Nimin for me.
Anyways, really respect the effort and excited to follow your progress!