Hexen II is the direct sequel to Hexen and uses a modified version of the Quake engine to create the game world. It was developed by Raven Software, published by id Software and distributed by Activision on PC CD-ROM in 1997.
Hexen is the 1995 MS-DOS-based sequel to Heretic and is another fantasy-themed first-person shooter utilising the Doom engine. Or at least: a modified version of the Doom engine. It was again developed by Raven Software and published by id Software, and John Romero once again acted as producer of the game.