A new video game is one that has never been played. It contains all of the materials it came with, including the proper case and instructions. It is possible for a video game to have been previously owned, but still be in new condition.
A used video game may have been played frequently. It can have minor scratches but must be playable and in 100% working condition. Used video games must contain the original case and instructions for the quoted price to be valid. If the case, instructions or both are missing, the quote will be invalid and the items will not be returned.