Here is the full list of all 17 Nimble Writer achievements.
Write 2,000 words every day for 21 days.
Write 2,000 words every day for 14 days.
Write 2,000 words every day for 7 days.
Write a total of 100,000 words.
Write a total of 75,000 words.
Write a total of 1,000 words.
Write a total of 5,000 words.
Write a total of 10,000 words.
Write 2,000 words in a day.
Write 3,000 words in a day.
Write 4,000 words in a day.
Write 5,000 words in a day.
Write 10,000 words in a day.
Export a story.
Write 1,000 words in a day.
Write a total of 20,000 words.
Write a total of 42,000 words.