: You need the original Heretic game files (typically HERETIC.WAD from the Steam or GOG versions).
: Integrates enemies from the Hexen universe and adds exclusive variations like Ice Gargoyles and ghost-mode enemies. Heretic - HeXeReTiC Fantasy Download PC Game
: Offers 8 skill levels , compared to the original game's standard five. Installation & Technical Requirements : You need the original Heretic game files