A LOT OF STUFF IS MENTIONED IN THE WIKI

New Wiki from the creator:
https://gm13.xalalau.com/wiki

*Something new, something interesting* ;)
https://youtu.be/Tfu0juYrek4


*CURRENT STATUS: The table ritual is completed, but the map is being constantly updated so we're not done yet


Table ritual, upon completion, summons Shadow Grigori that you must defeat multiple times
On each successful attempt Grigori will drop food packs that you must give to your Curse Detector to upgrade it
Upgraded CD (curse detector) will heal you, your allies and give you suit energy


*LOCATIONS of items needed for the table ritual:
(all possible locations are listed in the Wiki)
-Doll is hidden as a cabinet/cupboard in the Stalker's room
-Skull is hidden as a trashcan in the secret room under a ramp where you originally find
the doll
-Baby is hidden as a lamp in the Stalker's room
-4 more babies are hidden as globes somewhere around the map, they spawn randomly disguised as wooden globes
CURSE DETECTOR will flicker green when near an item needed for the ritual, look out for it :)
All items needed for the ritual have a flickering shadow, hitting them transforms them into the items you need for it


*ORACLES
also referred to as "vent drawings" and "vent oracles"

-A drawing of a radio on top of a building and a sun over it
If you put a working radio on top of the building C, that's located next to water - said radio will emit weird sounds and, after a small delay, something close to a fire storm will happen

-A person with curse detector standing in the tunnels, looking at a blue portal on a wall
If you take curse detector to the tunnels and go near the exit from the Dark Room you'll find a portal to the ARC facility (I think you must have an addon called Doors? Im not sure)

-The table ritual
This oracle depicts a table with 5 skulls, a baby toys and a doll hovering above it.
This is the main point of interest of all researchers, it's directly tied to the Shadow Grigori (as it summons him), all locations of these items are mentioned above ;)

-A weird bigger dark room under the main dark room, a dark tunnel leading to it with a red cross in the middle
We know the least about this one, as there seems to be a bigger dark room underneath, but nobody seems to know the way to get to it (asides from being there ONCE during the doll and chair anomaly)

*OTHER confirmed reported anomalies:
-Curse detector will flash red and reach towards something - an event related to Mingebags, as it usually reacts to their presence
-Semper can steal your CD if left unattended
-Upon entering any room or location there's a chance to see some shadows as if the person was just standing there in front of you
-If you throw furniture and make Stalker reset them enough times - he becomes hostile and starts attacking you with his laser. He might disappear and reappear after that
-Semper, the weird low-poly shadow dude, doesn't appear to be hostile or dangerous to the player. Only known anomalies related to him is Semper teleporting you around, but again, never reported as dangerous or fatal
-Shadow Kleiners are not hostile, HOWEVER are dangerous and fatal. Will kill you if you manage to reach and touch them
-Touching the radio against the Oracle vent wall for long enough will trigger an explosion
-In the big room behind the mirror there's a breakable wall on the opposite side from stairs that leads to a second dark room, but nothing seems to happen there, no documented anomalies yet
-Taking your Curse Detector into the tunnels and then bringing it near the Dark room exit will open the portal to the ARC facility, which contains a lot of interesting findings inside
-All NPCs will die in the Dark room (some will even try to navigate into it by themselves)
-There's a mirror world, which you can access by going into the huge mirror in the room underground. There are reports of seeing drawings and hints in the mirror world, which cannot be seen in the regular world
-There are a couple of creepy events that can occur in the tunnels, but the most interesting one happens if you bring your Radio to the dark part of the tunnels, with a dark spot on the wall, and interact with it (must have Portal Radio music playing)