Here’s the guide to the Unstoppable Progress achievement in “Frost Age 2”! To get this achievement, you have to push forward technology and city development in the game. Constantly explore new areas, continue to invest resources, and overcome many difficulties. Always pay attention to developments and follow this guide to achieve unstoppable progress!
The requirement for the achievement is to maintain a "clean" state despite having a material requirement of 1000, or to have at least 1000 material requirements and no slums.
What you want to do is build a material colony to supply most of your needs, and build filter towers to deal with excess slums from other sources. Avoid putting technocrats in power as they will reduce material requirements.