Here is the full list of all 30 The Walking Dead: A New Frontier achievements. It takes around 6-8 hours to unlock all of the achievements on Windows.
Complete Chapter 6 of Episode 5
Complete Chapter 5 of Episode 5
Complete Chapter 4 of Episode 5
Complete Chapter 3 of Episode 5
Complete Chapter 2 of Episode 5
Complete Chapter 1 of Episode 5
Complete Chapter 6 of Episode 4
Complete Chapter 5 of Episode 4
Complete Chapter 4 of Episode 4
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Complete Chapter 2 of Episode 4
Complete Chapter 1 of Episode 4
Complete Chapter 6 of Episode 3
Complete Chapter 5 of Episode 3
Complete Chapter 4 of Episode 3
Complete Chapter 3 of Episode 3
Complete Chapter 2 of Episode 3
Complete Chapter 1 of Episode 3
Complete Chapter 6 of Episode 2
Complete Chapter 5 of Episode 2
Complete Chapter 4 of Episode 2
Complete Chapter 3 of Episode 2
Complete Chapter 2 of Episode 2
Complete Chapter 1 of Episode 2
Complete Chapter 6 of Episode 1
Complete Chapter 5 of Episode 1
Complete Chapter 4 of Episode 1
Complete Chapter 3 of Episode 1
Complete Chapter 2 of Episode 1
Complete Chapter 1 of Episode 1