itch.io

Idk if you solved this already, but for those struggling, I haven't tried uninstalling myself, but I did combine the power of these to comments to find the mentioned folder (the address Iwan gave didn't work for me). If you're a Windows user:

1. Go to "This PC" and then "Local Disk (C:)".

2. Along the top of the file explorer, select the "View" button. In that drop down, on the right side, there is a (probably) empty check box next to "Hidden Items". Check that box, and you'll be able to see hidden folders.

3. Click on "Users", then select yourself (or whoever's account the game is installed under). 

4. There is a (normally hidden) folder called AppData. Click it, and you should see the three folders mentioned in teddy's comment. In this case, you want LocalLow. 

5. You should see a folder here called "Adam Pype - Viktor Kraus" here. This is the file you want to delete.

I apologize if this isn't here for those trying to uninstall, as said before I haven't uninstalled myself, I was just trying to see if I could peak into game files ^^U

You do not have to uninstall, as using the Konami Code (up up down down left right left right B A) on the server screen resets the game to its default state.  Also, as IwanPlays states, it saves using the registry.  I can 100% confirm this as I have seen exactly how it works.

just do the konami code

up up down down left right left right B A