Mine That Money - Playing as Celts

I would recommend a pierce armor gear in that one

 

Make sure to have the Taxes milestone from Persia active, as it's roughly 3-400 gold generated by itself.

Miner Kleon, a cheap A1 advisor, makes this significantly easier.

Use your scout and spearman to take out the nearby caravans - Scout to tank the enemy spearman, your spearman kill the caravan, then move on. Do NOT attempt to kill said spearman.

While you are doing this, have villagers gather berries, enough to fill out the rest of your pop cap + 3.

Once you have either downed all the caravans OR acquired all the food to hit full pop cap, delete your 3 spearman and replace with villagers.

Use your scout to keep an eye on the patrols - If you see a Siege Tower coming, move. If you see a group of spearman coming, have the scout kite them to the town center, and let your TC kill them.

To make this extremely easy, you can just use Gold Mine consumables.