[...] hopefully someone will at some stage figure out a template for users to add their own quest-lines, items and unique recruit-able character.
You can already add items and equipment sets, for Custom characters I'm pretty sure I can figure that one out fairly quickly, I've seen the codes many times while going through other stuff. For quests I need to look into the quests/side-quests/repeatable to figure how it ACTUALLY works, but that is one of my end-term goals too. Afterall, figuring out implementation is the hardest part, otherwise is just adding a new entry to the "Quest" "Sidequest" "Repeatable Quest" Databases respectively. The advantage of Strive being a test driven game.