QuestLogTheme - Stalker or empty
ResetQuestsAfterDeath - Resets all the quest progress when a player dies
Version - Not important
QuestKey - Not important
AdditionalQuests - Array of filenames which are supposed to be loaded on top
of the Quests.json file
These files additional need to be place in the AdditinalQuests
Make sure you're using @CRDTN Core mod and the main Quests.json file is in the Quests folder of CRDTN. This json file is a foundational quest file and you can leave it empty or setup some quests in that. It's there due to a backwards compatibility, but since the update 0.6, you are able to use AdditionalQuests parameter in the Settings.json and setup multiple files.