The Box

The ultimate completionist achievement on normal difficulty. To earn The Box, you must complete every chapter in the game with every available class. This requires dozens of full runs across all 14 classes, demonstrating mastery of each playstyle. Completing this achievement unlocks The Box trinket (Cardboard set, Rare rarity), which causes you to find an extra chapter item at the end of each battle.

Tip: Track which class/chapter combinations you have already cleared using the in-game progress tracker. Focus on one class at a time and complete all chapters before moving on. The Box trinket reward is a fantastic item that floods you with extra loot, making every subsequent run more rewarding. This is the first of four Box achievements, with harder variants on Hard, Crazy, and Impossible difficulties.