If you were intrigued by The Callisto Protocol when it launched last month but didn’t want to shell out $70 for it, now’s your chance to get the survival horror game for a great price. The Callisto Protocol is on sale for only $40 at Walmart for PS5Come from Sports betting site VPbet. It’s the lowest price yet for the PS5 versionCome from Sports betting site VPbet. Sadly, Xbox Series X owners can’t take advantage of this deal. It’s worth noting that both the PS4 and Xbox One editions are discounted to $40, too.