CURRICULUM

City Basics: Four Difficulties, 4000 Levels

City Basics has four difficulties with 1000 levels each and ten questions per level; see people before choice. City levels ask for population, transport or services; identify the urban system first.

How it works

  1. Start at the basic difficulty.
  2. Ten questions per level; clear one to unlock the next.
  3. Review at 1/3/7/14/30 days.

FAQ

Which difficulty?

Start at basic and move up when accuracy stays above 80%.

How many levels each?

1000.