There are 3 main currencies in Mortal Shell 2: Gloom, Gold, and Glimpse. Gloom is used at Beacons to level up your Harbinger, improving overall stats. After upgrading the Tarforge with the Foundry Stone, Gloom can also be used to Smelt Weapons and return spent Materials and Gold from any weapon you have already upgraded. Gloom is dropped when you die, and must be recovered before you die again or it will be lost. Gold is used to purchase items from Merchants and to upgrade Weapons, Sidearms, and Tarstones at the Tarforge in Marrow Keep. Unlike Gloom, Gold does not drop when you die; it is not gathered automatically and must be looted from the ground after defeating an enemy or picked up from a location. Glimpse is used to increase your Shell Bond at Zhirelle in Marrow Keep, which provides further backstory for each Shell and unlocks more passive Shell Abilities. There is not enough Glimpse to max your Bond with all Shells in one playthrough, so prioritize the Shells you want to use the most.
