Reddit mentions of Left-handed Luck

Riddley Walker by Russel Hoban. It's pure wonderfulness in a language that resembles English, with a story that's like Huckleberry Finn in a Hieronymous Bosch painting,
https://www.theguardian.com/books/2010/nov/13/riddley-walker-russell-hoban-bookclub

You also might wish to try Left-handed Luck by Rod Michalchuk.
Average rating on Amazon is 4.6 out of 5 stars. On Goodreads it's 4.7 out of 5 stars. On Smashwords it's free: https://www.smashwords.com/books/view/445031 On Amazon it's $.79: https://www.amazon.com/Left-handed-Luck-Rod-Michalchuk-ebook/dp/B008Y11YI4