YES! I LOVE harem dungeon crawlers! But they're SUOER rare!
I actually do have an idea for one th at wanba make myself involving a down on his luck android maker fired and ridiculed fir his ideas. Not because they were bad, but bc he wanted to make legit waifu andro8d companions.
Basically, I had the thought, 'in anime sure, but what about 'real life'? Would ppl support that? Outside of weirdos like me? No.... Let's be real. At best, nobody would take him seriously and mock him and, at worst, they'd want his parts of his research, mock him, THEN get rid of him.
My story would be about him do8ng his best to start over in a dystopian cyberpunk/sci-fi world raiding junkyards, old factories and such to continue his work. The heroines would be androids he'd find, repair and fit with his prototype tech to 'make them come alive'. I was heavily inspired by 'Saber Marinette J' and a few other sci-fi lije that so yeah...