Chaos on Deponia (EP)
35 Achievements
PS4
Family drama
Darth Vader is Luke Skywalker's father!
54.1%
How to unlock the Family drama achievement in Chaos on Deponia - Definitive Guide
I think that you can't miss it, but just in case: See the dinner of Seagull and Goal and give the radio to the platypus maniac.
Story-related and cannot be missed.
In Act II, Seagull will crash Rufus' romantic dinner and take Lady Goal on a date in Old Town. Once Rufus discovers his father's treachery, go to Old Town and listen to Lady Goal and Seagull's conversation. The trophy will unlock when you regain control of Rufus.