I'm not sure if Tusk is a real story. It might have elements inspired by real life, but could also be a purely imaginative creation. It's hard to tell without more context.
Most likely not. 'The Tusk' is often a work of imagination or based on fictional elements rather than real events. Authors might draw inspiration from various sources but don't necessarily stick to true happenings.
Yes, 'Tusk' was based on a real - life story that the director, Kevin Smith, heard on a podcast. It was inspired by a strange ad where a man was offering free room and board in exchange for someone dressing up as a walrus.
Not exactly based on a real person in the sense that there was a one - to - one real - life equivalent to the main character in the movie. However, as mentioned before, the overall idea came from a real - life situation involving an unknown person who made a very strange offer.
I'm not aware of its popularity. It could be popular within a niche group of visual novel fans who are interested in the particular theme or style it offers. There are so many visual novels out there that some great ones can be overlooked while others gain a large following.