I've only really played DERQ2, which is weird given its a sequel but its more overt gothic horror tone is what caught my interest. Ended up loving Mai, Rottie and Liliana as characters. I've gotten around to playing some of DERQ1 and...eh. The conspiracy angle's neat and I do like Arata a lot, but it has little of what I loved about 2 - the setting and characters aren't doing all that much for me. Gameplay's more varied than 2 but whereas bugs made that game extremely exploitable, 1's difficulty feels like it's all over the goddamn place so it's not like I'm more enamored with it on that front as well. Maybe I'll finish it one day. But otherwise, I've heard Mary Skelter's good and I've not really been interested in anything else CH has made.