Is just me or the older version (i think it was made in unity) had much more in-depth content than this one ?
No, it's not just you, literally every page of this thread has a comment like yours ever since the engine change.
The original had more content, but even then, it was lacking scenes and character development. The game already lacked substance then. But instead of adding to that and fixing the bugs, the dev decided to change the engine, while having no skill to do such a thing, but still making money off of patrons.