Uninvited guests.

I played the final version with a Human hero and finally managed to complete it in 144 days. Since the starting hero is not very good, I randomly chose a Machine Gunner (it took about 5 tries, and Andreas appeared). Apparently, I got lucky; my hero immediately upgraded the Machines to a Tent, developed Luck and Defense, and, most importantly, got a decent Attack. At the beginning of the 3rd week, the visits from enemy heroes started. I didn't immediately develop a tactic to deal with them, but through trial and error, I gradually figured out how to handle them all. In particular, at the end of the 2nd week, I sacrificed Preparation and built a Fort, which allowed me to defend quite effectively (Rupert stayed in the Temple). First, I destroyed the Archers and the Catapult, and as a result, the AI hero with clearly superior forces just milled around the walls and was eventually finished off there. During the game, I searched for the Witch Coven and then abandoned it because it was no longer needed (if destruction is critical at the beginning of the game, it is easily overcome by the middle of the game). I noticed a couple of oddities in the game. Judging by the green color of the AI hero's parameters, they should have artifacts, but for some reason, I often didn't get anything, even though the enemy didn't run away but was killed on the spot. And also, somewhere around the 4th month of the game, I noticed that the killed AI heroes appeared literally the next day with an even larger army. If this is intentional, it's great. Thanks again to the author for a very interesting map.