There are many difficult achievements in "Frost Age 2", and Dreamer is one of them. To achieve this achievement, you only need to research 60 ideas in 600 weeks. It is still very difficult, and you can Increase the speed of research through sound laws and have adequate research institutes and teaching hospitals.
How to get the Dreamer achievement in Frostpunk 2
Dreamer
Work on 600 ideas in 60 weeks.
Increase the speed of research through sensible laws and have adequate research institutes and teaching hospitals. Have the Techies assemble to further increase research speed and ensure there are always enough Hot Seals to start new research as soon as old ones are completed.