What C&C Rulesets, Companions are Required as a Bare Minimum?
I have FGC and FGU Ultimate and I'm looking to adapt and bring online a tabletop campaign I was previously running with the Shadows of Cthulhu companion for True20. I'm wondering if the Keeper 7e ruleset is enough to get a campaign going?
I ask because I own both the 7e Keeper and Investigator PDFs and the Keeper content is enough - provided players don't need to roll up their own PCs. For my campaign my players were playing pregens that were based on the playable characters available for the living card game, and I'd be recreating those for C&C 7e. Meanwhile my campaign is a homebrewed series of adventure similar in approach to the Doors to Darkness book. A number of my mythos monsters are homebrewed and I any pre-existing threats I used are all in the Keeper book. I own a number of FG rulesets and I'm aware that they vary from one to the other in terms of breadth of content and at times differ from printed core books. Hence my question.