Dragon Knight 4 (ドラゴンナイト４) is an erotic role-playing video game developed by ELF Corporation and released only in Japan for several platforms between 1994 and 1997. In 1994, the game first became available for PC DOS, NEC PC-9801 and Sharp X68000, with a censored version ported to the SNES in 1996 and later to the PC-FX, PlayStation and Sega Saturn in 1997.