The Immortality D-package enhanced the wearer's cardiovascular system in such a way as to provide incredible stamina and the ability to disregard many types of injury. The technology of D-Package implants had the consequence of rendering them larger and more intrusive than other types. Thus, they tended to have more impressive effects, but could only be used by very healthy individuals.

Behind the scenesEdit

In the game, the playable character must have a constitution attribute of 18 or higher.