I played Banished again after a long break. Probably as long as this old thread
First I wanted to check the new version with Mods. But the mods cancel the Steam Achievements so I also started a couple of new maps.
Interesting Seeds to try:
954133989 - large plain
901014881 - large plain
With the first map I managed to get a couple of achievements:
300 population with No Schools and No Trade... Just.. then I had a lack of tools and the whole town went into a tail spin and died within 1/2 hour.
I restarted a new map to get the other achievement of 400 population with no crops, orchards, animals.
That one was easier because I could now use trading to get a lot of food in exchange for firewood instead of growing it.
I found out that you need to constantly balance the amount of goods after each house built.
Tools = Pop x 2
Clothes = Pop x 2
Firewood = # house x 30 (min) or x 60 to trade
Food = Pop x 100 (min) or x 200
Wood = same as firewood
Then build a shop then a new house and check the total population again. (and average of 1 new house per year for the first 20 years)