Making circular particles

Questions
,
1

hey, guys how can we recreate such a thing using particles?
image

from http://opencontinents.com/

2

Hey you can check below links this will guide you
Example 1
Example 2

3

@Gundeep_Singh hey thanks for the response but I wanted to know how can you make it like one side of the circle has more particles than the other and it’s a bit fuzzy too