It took the creator of Cave Story 5 years to make his game. It's not a game with "high production values" but it was a solo project for every aspect of development from programming to art, something that not many people can do.
Still playing with the first created character and so far only have seen a few romantic scenes. Have now all the hearts with loren. Not sure if i like loren, with her cold attitude. Karen seems to be a more warm person. And chambara, oh, that's an interesting one. Never thought one that practices the black arts could be such a naughty person. One of the lines chambara use did rise my eyebrow, like something as "eh, what did she say there?". It was just as surprising as that line the dremora in morrowind dropped after taunting him (temple quest in maar gan). Also liked that little "show" she came suddently with. For now on i will pursue the ending with loren, but from what i've seen so far i say chambara.

Saren stares down at the ashes of the inn he and Draco used to own. He wasn't sure how he was supposed to feel. Being angry would make more sense to him, but what came over him was the resignation over his worst fears coming true and not being surprised by it.
"House trained, you said." Saren comments, turning away to look at Draco. The mage was kneeling down and desperately trying to wake up a three-headed dog that appeared to be passed out. "Wouldn't get into the mead and belch fire at the customers, you said."
"Trouble didn't mean it! He just got a little too excited over seeing me doing the firebird trick and wanted to join in...." Draco replied. His face was a shade of red that had little to do with blushing and Saren strongly suspected the dog hadn't been the only one getting into the mead. Perhaps it had actually been Draco who had belched fire at the customers and building rafters, but for now Saren wanted to blame the dog. The odds were against the fire being Draco's direct fault if only because it was one head verses the dog's three.
"Everything we owned was in that inn!" Saren suddenly shouted, forcing himself to act angry. He would have continued to yell further except Draco was already making that sad face and he couldn't bring himself to continue. Was it a form of insanity or love that Draco's antics no longer bothered him? Saren shook his head to clear it and then sighed. "Guess this means we'll have to go back to adventuring now."

I also have to say thank you for bringing this thread back. I'd wanted to share my thoughts on the romances when I first finished the game, but I felt like I was too late to the party to really get a response
I partially agree with what Asonder said about the Saren+Loren romance. The master slave relationship didn't really do much for allowing a healthy natural romance to happen between them. But, that's what made the Myrth+Saren+Loren love triangle, my favorite romance option, work so well in my opinion. Saren starts his journey down loves road with Myrth learning what it means to love a woman while being nice to Loren, as any loyal slave would, until he's forced to choose between them. This makes it seem more like Loren fell in love with Saren and Saren responded to those feelings. While with Myrth at that point it seems clear that Saren has no future with her so it actually feels natural to me for Saren to let go of his attraction towards Myrth and allow his feelings of loyalty towards Loren to grow into love in response to her feelings.
The jealousy system really did a lot for me for developing the romances. What about y'all, did any of the love triangle, or any kind of octagon, make or break any of the romances for you?