Finish an Era with a Village which has 200 Prosperity and 3 War Markers
This challenge is odd as, unlike in prior developments, we now want to actively encourage a Village to go to war. To do this we must give them a lot of resources, quickly, and turn the middle green icon above their greed yellow; this would mean a village will seek to attack another village.
So start as usual. Build a Forest and palce some resources. Now, place a lot of resources but avoid Strawberries (Strawberries produce Awe, and awe reduces a village’s hostility).
Click on the village. You’ll know if the village has enough resources as there will be three red arrows in the top right, next to their resource counts, this shows a village that’s getting greedy. If they’re not looking greedy, then just give them more.
Once the middle circle turns yellow, set up another plot of land. It doesn’t matter where, but try and keep it close. On this plot of land place one resource to attract a nomad. All being well your initial village should launch an attack on this village, wiping it ou and earning itself a War Mark.
Now simply leave the solitary resource to coax new Nomads into setting up and your initial village, hungry after its first victory, should attack any and all villages that set themselves up, chalking up a War Mark with each one.
If no Nomads are appearing check the bar under your prosperity; this bar needs to be filled to encourage more Nomads to appear. Fill it by giving your initial Village even more resources.
Do this and you can easily exceed three war marks in thirty minutes.