What is a in n out monopoly game worth?

There is no official In-N-Out Monopoly game.

You may be thinking of a promotional game that was offered at In-N-Out restaurants. If you have a specific In-N-Out game in mind, please provide more information, such as:

* What year did you get it?

* What does the game look like? (Pictures are helpful!)

* What are the game pieces?

With more details, I can help you research its potential value.

However, keep in mind that promotional games are often worth very little, unless they are in excellent condition and are very rare.