A rack upgrade that automatically keeps chemicals in the subject's body at the desired[user-controllable] level.

If there is not enough of a certain chemical in the subject's body, it will automatically inject more, provided the user has the required chemical.

This is especially useful for chemicals that wear off over time.

If a chemical and it's nul-form have effects that cancel each other out, allow the user to set a minimum and maximum level:

If the subject is below minimum level inject the chemical, if it is above maximum inject the nul-chemical, do nothing if the subject is in between.

To me personally Ma'am isn't as sexy as Mistress , the male preference get's Master so why not \,._./

Can you add some monster girls to game like nekomata (Cat Girls) and others, this's totally counts as furry but not fully zoophilia which is liked by a big fan base and it will be really awesome if you at least 1 monster girl specie to your cool game.

I would be good to have the option of painting the subject's claws/nails of any color and maybe some patterns

Once you've got a couple of coolers, a full tank of Specimen takes like, 8 minutes to process, and you can't be doing research during that time. I'm also not sure how it interacts with when you're actively "experimenting" on somebody.

That 8 minute gap in gameplay is kind of a bummer, and spoils the pacing. Just some way to upgrade the processing time would be great.

It would be pretty cool if there was an online multiplayer feature where you could play online with friends.

Different sliders for tongue length, width, height.

or DDLB, CDLG, CDLB and so on. Just a button that will make them call you mommy, daddy stuff like that.

It would be nice if users could mod in fetishes that haven't been added for a reason or the other.