scars of reality
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In my case, you can also try it on version 1.2.5, but there's not much point. The amount of resources needed to unlock the pillar before the blue tent is accumulated by version 1.2.2. You can also beat Pandora on version 1.2.4, but there won't be enough troops left to capture the castle. Although, theoretically, I suppose it's possible. But I repeat, there's no point in capturing the Dungeon before version 1.2.6. The earlier you capture this castle, the higher the losses will be, and primarily in arbalests, a certain number of which we will need later.
UPD I tested the theory about capturing the Dungeon on version 1.2.4. It's possible, but it's a huge hassle and the losses are too great. The only plus is the ability to take the lumber mill on version 1.2.5 and have time to build a market or tavern in the Dungeon by version 1.2.6. So, you can probably get some minimal benefit from this.
UPD I tested the theory about capturing the Dungeon on version 1.2.4. It's possible, but it's a huge hassle and the losses are too great. The only plus is the ability to take the lumber mill on version 1.2.5 and have time to build a market or tavern in the Dungeon by version 1.2.6. So, you can probably get some minimal benefit from this.