Skoraj
Auto-translated
I decided to try and break through the defenses, but not on a save, I started a new campaign (I still wanted to complete it!). On day 213, with 47 Centaurs and 116 Berserkers, and with the spells "Cloud of Disappointment" and "Fire Storm" (they appeared in the spellbook right away), I took the shipyard (losses: 4 Centaurs and 26 Berserkers), added 2 Centaurs and 8 Berserkers, and on day 221, I cleared the island and boarded the return ship. Remaining after the battle: 38 Centaurs, total losses: 11 Centaurs and 124 Berserkers. Total enemy losses: 183 + 147 Rogues, 183 + 294 Pirates, and 1 Thief of level 3. I thought it would be worse.
I defeated the first Pirates, you could say, with my starting army, losing 3 Centaurs and 10 Berserkers, then I gathered a bit more of an army and defeated Tomi Kreek, losing another 4 Centaurs and 81 Berserkers (I saved screenshots before the battles). Total losses: 7 Centaurs and 91 Berserkers, but I got more in the city :)
On day 36 of the game, I took the city :)