Locations where you can find items that expand your inventory capacity. In total, Saga can collect four such upgrades. Each of these items adds an additional 5 slots (one line) to Saga's inventory.
Once you upgrade your inventory's size, you will unlock the "Grew Bigger" achievement / trophy.
Inventory Upgrade #1Chapter: Return 2: The Heart. Increases the number of slots (+5) available in your inventory.
This item is in a hidden room, which you will be able to enter through a hole in the wall made by a cultist who will attack you here when you search for the heart.
Inventory Upgrade #2Chapter: Return 2: The Heart. Increases the number of slots (+5) available in your inventory. You can find it in the Cult Stash #3.
Inventory Upgrade #3Chapter: Return 5: Old Gods. Increases the number of slots (+5) available in your inventory. You can find it in the Cult Stash #18.
Inventory Upgrade #4Chapter: Return 6: Scratch. To get here you need to get the Lighthouse Key. You will find it in the last of the Cult Stashes you will open.
