I'm still mid-way through playing Moonless Knight casually, but this series has been a blast so far! Seeing such playstyle differences between games in a linear storyline is very interesting, especially from a solo developer. I hope to spread the good word a bit through speedrunning the series. I have two runs up for SiS and Usurper so far:

https://www.speedrun.com/skautfold_shrouded_in_sanity
https://www.speedrun.com/skautfold_usurper

I've submitted requests for pages to be created for the last 3 games as well. I encourage anyone with an interest in speedrunning to consider these games - they're all very friendly to speedrunning in my opinion, in no small part due to Pugware designing for the possibility of pacifist runs!