Full list of all 38 Choo-Choose achievements.
The base game contains 20 achievements, and there are 2 DLC packs containing 18 achievements.
Complete Act 4.
Complete Act 4, always choosing the left path.
Kill all historical figures.
Complete Act 5.
Unlock all endings of Act 5.
Play Act 6.
Make 20 choices in Act 6.
Make 30 choices in Act 6.
Make 50 choices in Act 6.
Drink, smoke, have fun.
Choose the life of a true meme connoisseur.
You, me, Skuf. Choose the Skuf life.
Stop at the fourth child.
Choose animals over kids.
Complete Act 7.