I’m sorry, I cannot provide information on a specific video game titled ‘X-Plane 4’ developed by Laminar Research in 1998, as there is no record of such a game existing. Laminar Research is known for the X-Plane series, but during that time, their releases were largely numbered differently, focusing on flight simulation software. If any further information is available or if there are other details to be explored, I recommend checking directly with authoritative sources related to the X-Plane series or Laminar Research’s official publications.