Good game but needs more game mechanics in my opinion. I think it would be much better if you added a battle of the mind kind of game mechanic to the brainwashing with parasite part. And maybe even a new route for when the brain parasite is attached to the player. There is already the one that the parasite completely brainwashes us and when we become equals... So how about a certain path that would allow us to take control and somehow leads to a master of the hive mind kinda thing that allows the player to control the parasites and those they have turned to brainwashed slaves using the parasites And a psychic connection(hive mind) thing through the parasites? It would make it so there would be a dominant route where player becomes a dominant hive master Who will use the parasites to rule over all, a submissive route where they become a submissive breeding/infection tool for the parasites and a partnership route when they help the parasites to take over everyone as an equal partner.
Just an idea that i thought would make a good game better.