Hi everyone! So, a big issue with discussions on any singular platform is that progress can be seen as very limited, however, I have come to quell your worries by merging some of the efforts shown in the anomidae discord server (gonna put discord invite from their yt page here: https://discord.com/invite/wYMvKgtBqx)

Progress has been slightly faster on Discord, but we still have so many unanswered questions and things to solve! So, here's the day 1 update posted by anomidae themself! (might be in character):

"Community:
Has explored and decompiled map logic thoroughly
Nothing significant found logic-wise
Some potential serial keys found(?)
91QI9-13514-UGUMF and 91QI9-13514-UGMUF
KULCS means “key” in hungarian
Map loads in other various source games but doesn't seem relevant to anything

My End:
Have “tried” the new serial keys, though that doesn’t really mean anything because there’s no way to actually input any keys and codes
I actually tried weeks ago using actual HL2 CD keys (and an orange box key) but there’s just no way to actually input a key, not even using look inputs or emulator string editing (yes I tried)
Someone had suggested using SFM to input keys, but the emulator is not responding to any outside games, it’s not interacting anymore
Important thing to note: If I disconnect my internet the game instantly crashes, so there’s some telemetry going on (yes I tried wireshark, no it didn’t reveal anything)
The awful framerate improves if I let it run for 20-30 minutes

Other Notes and general updates:
There was a new EIDA MONA archive upload posted a few days ago that I forgot to mention in the video
I’m still tracking community suggestions but none of them seem to be working on my end. Unfortunately I won’t be able to try everything though so please attempt stuff on your own first
I haven't slept for 18 hours"

(also, there is a video supplied that I won't link here, try to join the discord off the yt channel for the ARG to join more like-minded people!)

A few things to explain that we have covered in other discussions, Kulcs means key has been said here, we've explored every single way of opening the map, to no avail. Orange Box is also found to be a dead end. Ultimately, I recommend you find your way to the Kulcs discord channel and hopefully, we can all get one step closer to solving everything! (There's also a lot more logical stuff I can't share here for brevity, please check out the pinned messages)