After being enslaved by the evil Lord Numbers, you have been forced to navigate his treacherous puzzle rooms. After easily defeating the first and second puzzle rooms, you stumble into the third room, which is filled with numbers, like any good number prison. You start to inspect the room.
The immediate thing you notice is the number three written everywhere around the room. Most of the placement seems random, although there is one instance of 3’s to note. In the center of the floor, there is this pattern:
You see a door with a keypad labeled with the digits 0 through 9. You type in 3333333, but the attempt is futile. It is rejected immediately, and you are informed that you have 1 out of 3 attempts left to open the door before you are obliterated. Someone must’ve passed through here before. Hopefully, they left some clues behind.
On the door printed in large scribbled handwriting are these numbers, in this format:
-20 -17 17 -12 -9 16 -2 2 -1
24 -5 -4 -5 -13 -18 -8 -22 -16
-2 6 20 17 -10 10 15 12 -5
14 -1 -19 -7 -13 -12 -9 -11 16
-24 -14 9 11 -19 16 24 3 -3
-2 20 -6 2 8 17 -20 22 -7
-1 1 -13 -15 8 24 20 -16 11
25 -4 8 -9 -11 4 -1 -7 5
18 16 -10 1 -22 6 -13 17 19
-18 2 -2 10 -17 -2 -6 5 12
25 1 15 7 22 -8 16 14 3
12 9 -4 -25 -4 1 -10 -21 -1
-14 -19 24 26 -4 -16 -2 19 -12
21 -5 -2 23 20 5 -7 12 23
-15 11 20 8 -7 -6 13 9 -18
2 -1 7 -12 23 21 -2 -14 8
-6 12 -16 -20 -26 -23 2 9 21
26 24 -20 -5 -9 -22 -18 -15 -3
-20 19 -15 -3 8 2 26 -25 9
3 -6 7 -9 13 20 -15 3 -21
20 -18 -10 1 -15 18 -5 2 10
11 -19 24 13 3 -26 -3 5 9
-17 -3 -1 -3 19 -4 -5 -14 24
9 5 -9 2 -12 -25 -20 -6 13
15 -23 11 5 -6 -19 -6 -26 13
-2 -22 6 6 26 8 22 -3 -7
1 -15 -18 -21 19 -10 21 14 5
Scrawled into the bottom right corner of the right wall is a small message written in blood that states:
Sumwhere in heaven, my guardian angle weeps for me, as the sum of my negative thoughts rots in the circles of hell.
Accompanied by this sketch:
Someone must’ve went delusional waiting in this room, trying to solve the puzzle.
Finally, above the large numbers on the door this message is scrawled out in blood:
LETTERS DON’T START, THEY FINISH!
What do you enter into the keypad?
Edit: Slightly changed the puzzle to make it a bit easier, although not a major change, just a 2 on the first photo.
Wow, this is old, Here's a hint:
The numbers need to be subdivided into a grid of grids that the weird box and the 3's is supposed to indicate.
Also,
The puzzle is more supposed to be solved top down, so starting from the top is suggested.
This has been due a hint a long time so
The puzzle is meant to be read in 3 by 3 blocks. Each 3x3 set of numbers share a certain special property that not all sets of numbers would have.
and another
Most of the numbers are completely irrelevant and can be ignored.