I restarted twice. I didn't use the last one.
The rewards were quite meager. The only interesting thing was a hidden stash of gnolls.
The first week was tough; I didn't have enough money, plus the adjacency to the Citadel with a penalty made it hard to move around. The path to my own castle was blocked by 30+ diamond golems. I somehow managed to gather enough money and built a meat grinder in the castle. On day 121, I took the artifact, then drank the companion potion and started collecting hives and exploring adjacent territories, but on day 125, the opponent surrendered in a max-conquest scenario.
Thanks for the game.