I can't think of any recorded campaigns offhand, but there was a trend around 2010 or so where folks were doing "Inquisimunda". Inquisitor type games with various homebrew original-Necromunda-based rulesets ported into the setting or incoporating various elements of Inquisitor. Folks playing these seemed to want an
RPG'ish feel to their games. There's an Inquisimunda ruleset or two over at yaktribe still that you can download.
https://yaktribe.games/community/vault/categories/inquisimunda.41/
Also Inq28 (Inquisitor 28) still has a following I believe. Searches for Inq28 and Inquisimunda might get you at least some game inspiration.
I love the Inquisitor setting and the original Necromunda rules so it'd be a dream for me to participate in an Inquisimunda campaign with a good
DM and some
RPG elements.