Maybe i can shed some new light on this whole (what could we call it?), i guess i'm going with Lessons in Love Unified Lore Universe. LILULU or LULU? ^^
Don't take this all too seriously though.
IIRC Sel like's David Lynch.
Lynch was the creator (besides other media i guess) of the 1984's movie "Dune", based on Frank Herberts Dune (Universe).
Now, some of you might know, but for those who don't, Dune, every iteration of it that was released as movies until now (Org. Dune 1984, Dune TV series ~2000/ 6 parts, recent new movie and it's sequels), are part of a rather large story, where the "Dune" part is in the middle. And Dune makes just about a 1/10th of the whole story (If we include Herbert's son, who continued the story).
What i want to get to is, maybe Sel is trying the same thing.
Creating a whole universe (that's in... erm coherent) where Lil is taking place in.
He could be using his prior game attempts as a lore backup, while, like with Dune, they won't have a real impact on Lil, besides stage setting.
The only exception i see yet, is the "Upside Down house". The "Upside Down House" might be something that pierces through the whole story/lore universe.