Spiral campaigns.

Campaign 1. At the beginning, you are given Orrin. But you can hire another hero. On each map, a hero can level up three times. This campaign has seven maps. The order of the maps is as follows: 1, 2, 3, 1, 2, 3, 4. The number of cities ranges from 2 to 3 per map. Two of the four maps belong to the "Kingdom of Crooked Mirrors" category, featuring many teleporters. Each map has been tested separately for playability.