Alright, because of some of your replies (Cxx) I figured out there was a previous version with new plot and old plot still available.
I just finished playing the old plot and I can say I really prefer that version. Sadly because, even if the game is (maybe) not abandonned, the old plot is abandonned for good I guess and only the contination of the new one will be available.
In the old plot, the mini games were fun, the scenes and more possibilities like the perks and the choice to dark or light (I did only the Light one, I'll have to try the dark one later). Only thing I prefered with new plot was the 4 Houses rooms/potion room/more Helena scenes. But I think the old plot story was better about the diadem and how things turn out to be. New plot didn't make much sense for me, neither the bugged achievements since fixing the broom doesn't work the same, no lock on the door, no mini games, ect...
It was a real pleasure to play this old version (0.10beta), I just stay now on a really bitter end with unfinished Xandria scenes and dialogues.