Farming
Fastest Way to Farm Gold Before the Siege
One loop, eleven minutes, roughly 40k gold. No exploits, just a trade route the game never points you toward.
Ironclad Kingdoms
The Siege of Marrow costs around 35,000 gold in repairs and mercenaries if you want the good ending. Here is the loop that pays for it in under an hour.
The route
Buy salt in Harrow's Landing, sell it in Marrow, buy iron ingots in Marrow, sell them back in Harrow's Landing. Each leg takes about five minutes on horseback and nets roughly 20k gold at the base trade skill.
Why it works
Both towns restock every in-game day and neither adjusts prices to your trades until the Trade Guild quest, so the margin never shrinks during Act 1.
Pro tipTake the Merchant's Ring from the Harrow's Landing chapel first. It adds 10% to every sale.