Great game. I enjoyed it a lot.
But how do I get ending 1?
Endings 2 and 3 were easy to find.
I have a small idea. Maybe it's related to "The Forgotten" somehow? Like if you stare at it long enough something will happen? If not, then maybe green flasks? Or are they just an upgraded version of red flask?
Update: The Forgotten idea doesn't work...
Update 2: I found a secret door in the throne room BEFORE crossing the bridge. It's on the right side near a broken pillar. I can't open the secret door, though, but I know that it's there because of the layout or "stitches" in the wall texture. I think it might be related to the ending 1 somehow, BUT you can't return to the other side, because the bridge becomes broken when you defeat the final boss.
If any of you know how to open that secret door, please let me know.
FINAL UPDATE! I FINALLY FOUND IT!!! At the very beginning go towards the sword, BUT DON'T TAKE IT. Instead turn around and open the secret door in front of the sword. Now go towards the chest. Turn Right and walk through the wall. Now go upstairs and through another invisible wall... I won't spoil the ending, but it's worth it :D