I would say that Cultist Clicker is 100% feature complete at this point. I realised that I could add a few lines to hide the next upgrade untill you have 50% of its value in pints of blood. I'm hoping that the mystery of wonder what the next item is will make people want to click more. I think the best thing I have added so far is my custom mouse cursor which is just a pixel art butchers knife. I felt like it really helps sell the point of sacraficing people more than a generic mouse cursor. The next thing on my list to add is a nice juicy sound for when you click on the sacrafice. Hopefully it gives a nice feel to the repetative clicking. Also I need to see about finding a better font and a nicer color for my text the black on white looks fine, but I feel like the orange on red on orange makes it difficult to read your score at a glance.

Here are a picture and a video of my new hidden upgrades system.

https://youtu.be/9VZQjjzmbmY