Moderator Message:
Removed link
Have fun.
Pretty much all role names, flavour text, factions, death messages, win screens and tips replaced.
Replace (on Steam, Windows) C:\Windows\Program Files (x86)\Steam\steamapps\common\Town of Salem\TownOfSalem_Data\StreamingAssets\res\WebAssets\StringTable\XMLData\.en-US.xml with the provided file.
It should make gameplay funnier, and it might mess up your Investigator results, but you'll quickly learn which name is which role and then you'll be able to write normal Investigator wills.
EDIT: Fixed some errors.