X Program

The X Program appeared when Yggdrasil initiated the Project Ark to delete all Digimon but a selected Digimon when the Digital World was on the brink of an apocalyptic collapse. Some Digimon developed X-Antibodies and became (name of Digimon) X. Some Digimon originated from the X Program.

The X Digimon fled to a new Digital World with 3 locations (the three locations are named after the Norns from Norse Mythology) consisting of Urd, a past plain which is a volcanic wasteland, inhabited by dinosaur and dragon Digimon, Verdandi is the present which is a world of lush greenery and is home to beast, bird, plant and other nature Digimon, and Skuld is the future, a high-tech city where machine and insect Digimon dwell. Yggdrasil sent the Royal Knights to eliminate the X Digimon.