pro noob tip for remastered. map editing making only 1 tile buildable, means you only need 13k people to unluck the last city milestone – February 17, 2023 at 11:21AM

I rarely reach the last milestone because I usually abandon and start all over when the city really takes off.

Anyway with map editor I made 1 tile surrounded by water,meaning the map only has 2% area to build,making it super easy blasting through the milestones. Checking the last milestone, only needing 13K population to unlock.