itch.io

Depending on your intentions, focusing solely on getting fatter is fine as a game mechanic, but probably won't attract as wide of an audience since this seems intended as an erotic game (maybe allow the player to select transformations or control them through game mechanics).

The collar's lore implies that taking it off will reduce your "capacity" to what it was before putting it on, but this does not occur. This could have been a fourth ending. As it is now, this allows one to increase their capacity a very large amount for free (put on collar, interact with tree repeatedly, take off collar, use ritual circle; only limit is not being so big that you can't reach the ritual circle due to the wall behind it).

Office exit doors no longer appearing fairly early in the game makes nearly all uses of double-wide doors pointless, as to go directly from the offices to the docks one has to fit through a single-wide doorway.

There is no lore provided for the tree that I was able to find, nor for the green creatures, but there is lore for "blueberries". Adding lore for the tree would be nice since it's (seemingly) the most important part of the game. Also, adding lore for the green creatures and adding the blueberries would be nice, or alternatively you could just make the green creatures blue (maybe then would make more sense for them to pull in the player than approach the player? idk).

Destroying a vacuum cleaner should drop some item, even if that item just hints at why you can't obtain its contents that way (or maybe a message could pop up explaining that it and its contents were destroyed, or lore somewhere could explain this).

Administrators not having access to the maintenance tunnels seems weird (if they're simply impossible to access in this version then it would have been nice for there to be a note of that).

Those are all the thoughts I have. Congrats on making one of the better lore-driven 3D games on this site.