They're working on a new
Fallen Doll that has DRM. AFAIK it's still being updated and worked on.
* Last F95 crack release was 0.4.9, latest paid release is 0.8.89.
That's why Anna's eye is red.
It's the reason we can upgrade parasite stats / abilities with the totem.
Also, we (the player / the parasite) cannot understand Anna's speech early in the game.
I think the developer has good writing / planning of the overall concept. The upgrades have a logical place within the fictional universe, and to some extent actually make sense. It's not just a power up menu or a skill tree, it's a biological adaptation for the parasite to become stronger and take more control from Anna.