[PS4][PC] Death's Gambit

1.
ALPHA
Ghosts of technology. Those who can see you through their screens attempt to communicate in a different language. Beyond this barrier, we may never communicate again. If only our voices carried further in the dream world.
This actually does end up being a big hint if you actually realize what it's pointing you towards. The ghosts of technology are the Garde Tum citizens "Those who can see you through their screens attempt to communicate in a different language." points towards it being the specific citizens that show on the screens (you'll see sort of ghostly faces on computer screens in the game), these can't communicate with you normally, so they do so in a different manner. "Beyond this barrier" The Chamber of Migration in the other dimension has a barrier keeping you from going outside (but by going to the ???, you can get to the other side of the barrier). " If only our voices carried further in the dream world." Another hint possibly, due to it mentioning the dream world (Nightmare).

This riddle took a while to solve, however the hint was in the ??? zone. In fact, it was right outside of the Chamber of Migration area that has the hint panel. Basically, there are two panels right outside, they blink in a certain pattern, first the left one blinks once, then the right blinks four times, and the left blinks three times. The language they're communicating in was binary, the left being 0 and the right being 1.

Thus, the code was 01111000

GAMMA
Through our inter-dimensional travels, we witnessed many events. None quite as striking as The Grand Unslam.

This was the easiest one, was solved first, even before we got any additional hints. However, the hint towards it is also in the ??? zone, in the room that's rainy, you can find an item called a Blaseball, which is a hint towards it. Blaseball is a baseball simulation horror game. There is an event in that game called the Grand Unslam, which took place on Season 3 Day 73, during the 15th inning, you can read about it in the Blaseball wiki.

So the answer here was 037315

SIGMA
Multiple Eldritch hand Dimensions - _ _ _ / _ _ _ _ _ _ _ _ _ _ / _ _ _ _ _ _ _ _ / _ _ _ / _ _ _

Later changed to

Multiple the eldritch hand dimensions
__________/________/____/___

Later changed to
The eldritch hand __________/________/____/___ Multiple dimensions.

Later changed AGAIN to
theeldritchhand.___/__________/________/____/___ Multiple dimensions. Input on Earthen console.

This one went through a few changes over the days, it's also the toughest one to solve and was the last one to get an answer after it was rewritten a few times. First, the hint towards this one is located in the moving picture room with the invisible platforms, there's three tablets there you can read.

The Eldritch Hand rules all.

Ash will be the final member to complete the hand.

Our father slumbers eternally... When he awakens, all that has ever existed will end.

There was actually someone who already made good progress on this puzzle, realizing that names fit in well with the underscores. The tablets help confirm that the underscores were actually meant to be names, so what we'd end up with was.

Xyarlohatp/Thalamus/Nier/Ash

The first two are self explanatory, Ash was confirmed in the tablet, Nier was actually a guess based the fact that in the original game, there was a character called Ash'nier, who was basically Ash riding a dragon, that dragon being Nier (it's the one in Journey's End). So that was a guess, and some people saw the name in the game files as well I believe.

This was the point where everyone was stuck, since the codes have to be 6-8 digits, and nobody could figure out how to get a number out of having a bunch of names. This was, of course, until the last rewrite, which made people realize that it was a URL.

Going to theeldritchhand.com would lead you to a song. People took that song, put it in a spectrograph and saw that there was a message in it, which said "Xyarlohatp/Thalamus/Nier/Ash" so that confirmed that the names were correct. Next was to go to the full URL, theeldritchhand.com/xyarlohatp/thalamus/nier/ash

This took you to a page with an image (the same one that shows in the moving picture room). When you code inspect the page and grab the details of the main .png the dimensions of that picture were the SIGMA code (width 954 and height 791).

So the code was 954791.