Hi there Samapatti!
It's so good to hear from you, your passion for the LMA series and for bringing this to my attention.
Tbh, I thought fulfilling the Adult Content self-rating questionnaire that Steam provides was going to be enough. But after watching that video you provided, it does look like Steam just doesnt have enough strong Age-Verification methods to satisfy Germany's requirements.
I'm unsure if my games would be considered "indexed", and if so, perhaps that means even attempting a USK rating would still be in vain?
Regardless, even if I was able to achieve the greenlight via said USK rating, if that meant having to censor or change LMA 1/2...I would honestly not be OK with having to do that. I think the sexuality and gore in our games, are intrinsic to their DNA and the artistic vision.
Are you able to at least view LMA 1/2 in Germany via itch.io? That's something I'm curious to know as well.
Anyways, thanks again for your support and for letting me know about this! ^^