Koschei's Cache is an achievement that requires the player to complete the Koschei's Troubles miniquest and speak to Koschei with all three different jewel colours (blue, green, and red).
See for more information under the Additional rewards/activities of the Koschei's Troubles miniquest.
This information has been compiled as part of the update history project. Some updates may not be included - see here for how to help out!
- patch 4 September 2017 (Update):
- The 'Koschei's Cache' achievement will no longer spam players when they use a gem on the NPC.
- patch 14 December 2015 (Update):
- Reworded the following master quest cape requirements for clarity:
- Completed the Koschei's Troubles miniquest and unlocked all jewel memories.