A list of Castlevania AUs but it’s only Lament of Innocence

AU where Mathias can see and communicate with Walter even after his soul got absorbed.
Bonus: Walter learn how to interact with Mathias in his dreams and take advantage of that to ruin his mental health. Like, killing him in the dream, wich seems too real to Mathias.

AU where Walter abduct Mathias when he’s a baby and raise him without ever turning him into a vampire, just to see how it would turn out.
Anyway the bitch ends up making an alliance with Death and Joachim to kill him.

AU where Walter discovers Mathias is hella good with alchemy and kidnaps Elisabetha to force him to come and create the Crimson Stone for him. It works well, until Elisabetha dies from sickness and Walter tries to hide it.
Also Leon eventually comes to their rescue. Or. Tries to at least.

AU where Mathias and Leon have a great life, giving up on the church to hunt the night together, until they die in their 40s (Mathias) and 30s (Leon). Elisabetha and Sara are still living and tell their story.

AU that starts like the previous one, with Mathias and Leon abandoning the church to hunt the night, except this time Elisabetha and Sara fights alongside them. And they all decided to live in the forest of Eternal Night to provoke the night creatures like “haha lol look at us living on your territory and not only surviving but KICKING Y'ALL ASSES TOO”.
Optional Bonus: Elisabetha, who knows she’s about to die due to sickness, drink a vampire’s blood to turn herself. And now they have a badass vampire wife as their ally.
Another Optional Bonus: Not only do they live in the forest of Eternal Night, but they start building a castle too. To spite Walter. And it will continue on as the generations pass. Spiting monsters becomes a Belmont and Cronqvist tradition.