A federal lawsuit filed against the video-game vendor GameStop Corp. alleges three South Jersey stores sold used games that sometimes cost more than buying new.

This week, a federal judge in Camden decided the three customers have a right to sue the company, which they accuse of concealing that the cost of used games did not include downloads provided with new games.

Instead, the suit alleges, it cost an additional $10 to $15 to purchase downloads, which combined with the price of the used game, often cost more than it would have cost to purchase it new. In other cases, it did not equal the savings the company advertised.