Ruined King: A League of Legends Story
52 Achievements
40-50h
GOG
Marked For Debt
Acquire 200 Black Marks (cumulative)
12.6%
How to unlock the Marked For Debt achievement in Ruined King: A League of Legends Story - Definitive Guide
Black Marks are obtained by completing bounties, defeating bosses, and selling fish to the Fishmonger. You will need well over this amount to purchase all the alternate skins for your characters, so this will unlock along the way.