We didn't really plan for a coherent story, there isn't really much of one, that's why in our trailer it's lore is that the government are trying to make coherent sense of it, it was all done in good fun.
I think the ending was made entirely separate of any story, and wasn't made to follow the game before it, haven't played in a while but I remember when I got to it I was in pain from taking so long to move haha.
When I made 15 I didn't think of making the story coherent, I just made the game loosely based on the last one, find books and these weird orb things which my brain converted to eyes chase you.
Glad to hear you had fun with it though, stay awesome :)
- Luke