Runes, keys and crafting supplies
Lower Kurast superchests
Lower Kurast offers a chest-focused route for runes, gems, and other supplies without requiring boss kills.
Lower Kurast in Act III, focusing on superchests in huts and nearby containers.
Repeat indefinitely, especially when the game mode gives you a favorable layout; chest contents are random and no particular rune is assured.
Stop when you have the runes or materials you need, or switch to a monster farm if you want experience and broader drops.
Open a guide to find other locations and see what the item is used for.
Lower Kurast offers a chest-focused route for runes, gems, and other supplies without requiring boss kills.