D2 is a survival horror video game developed by Warp for the Dreamcast. Directed and written by Kenji Eno, it was published by Warp in Japan in 1999 and by Sega in North America in 2000. D2 stars the "digital actress" Laura but has an independent story unrelated to the original D, and uses action-oriented gameplay in contrast to the puzzle-driven D.

Kenji Eno was a Japanese musician and video game designer. He gained a reputation as a maverick during the mid-1990s for creating unorthodox games like Real Sound and is perhaps best remembered today for his rebellious marketing techniques. Outside of his homeland he was best known for his survival horror video games, D and Enemy Zero. Apart from creating video games, Eno was also a well-regarded electronic musician and he created the scores for several of his games. Eno founded the video game development companies EIM, Warp, and From Yellow to Orange. He also worked in a variety of fields apart from video games and music including the automotive, cellphone, tobacco, and hotel industries. Eno died on February 20, 2013, due to heart failure brought on by hypertension.