Gimme 5!G 20

The description makes it obvious, and you will get this when trying to fill in a full month for other achievements. The only gotcha here is you have to actually play for 5 days, not go through 5 days of challenges in a single sitting.

Gimme 5! G20:
Play the Daily Challenge 5 days in a row

As of when i post this. You can do 1 challenge of the previous 5 days including the current day, in the daily challenges via the calendar all at once and it should unlock the achievement.

This can also be done with the marathon achievement.

ENJOY!!!