The Price of Loyalty is the expansion pack for Heroes II, released in 1997. Development of the expansion was contracted to Cyberlore Studios. The expansion adds four new campaigns, new artifacts, new creatures, new scenario maps, new in-map buildings and an improved map editor. The expansion also added a new structure for the necromancer faction - the shrine which enhances the heroes ability to raise the dead.
A common complaint about the expansion was the inclusion of a recruit building (Barrow Mounds) for ghosts. Since all units killed by ghosts themselves become ghosts, players were able to quickly gain invincible armies of ghosts that destroyed the game balance.
The Price of Loyalty was not released for Macintosh, nor was Heroes II Gold.