Create the most valuable medicinal item.

Create an item that you shouldn't.

Create the most valuable edible item.

Defeat Der-Suul in the Slaughtery.

Complete half of all quests.

Defeat Pavine in the Eihied Mountains.

Collect all trophies

Use bricks or bottles to lure an infected into attacking a human

Win the water gun fight

Engage in all optional conversations

Win the brick throwing contest

Collect all comics

Break into every locked door using shivs