Here is the full list of all 30 Batman - The Telltale Series achievements. It takes around 8-10 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
Complete Chapter 3 of Episode 4
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