I reached the Antechamber on Day 3, my discoveries and feedback. Spoilers included.

[Paper Boat]

So after 3 days in the game, I managed to get to the ending of the demo. I found this game extremely fun, and I had an absolute blast playing it so far. I disliked that it ended my run a day early by reaching the antechamber, as I had managed to get 3 permanent unlocks as well as 2 room upgrades that would have been fun to use on the last day. Overall, it was an absolute joy to play through and discover new things which had me so excited to go back and explore rooms I had already been in further. I highly recommend a blind play-through if you haven't explored yet.

Some discoveries I've made so far in this game:
There are 3 permanent unlocks I've achieved out of what looks like 4 on the inventory screen, and I have a theory on the 4th.
1. The western garden gate on the outside of the mansion can be opened by turning the garage power on using the breaker box and going outside through the garage. This unlocks the outside room which can give a buff depending on the room drafted.
2. The gem mine will allow you to start the day with +2 gems. This can be unlocked by solving the VAC puzzle on the breaker box, done by first setting all of the lights to purple, then setting the lights to {off} {blue} {green} {white} {red} {purple} These codes may be found in the email on the office computer.
3. The apple orchard will allow you to start the day with +20 steps. This is unlocked by entering in the code 1128 in the padlock of the gate by the camp site. The code was discovered by restoring power to the dark room after entering it and using a magnifying glass on one of the pictures.
4. I suspect that the 4th permanent unlock is related to the gymnasium, as all 3 of the other unlocks required the breaker box to achieve.

There are 3 levers which are required to open the entrances into the Antechamber, 2 of which are fairly easily accessible.
1. A lever exists in a room opened by the Silver Key, behind a locked door. This opens the east door of the Antechamber.
2. A lever exists in a room opened by the Secret Garden Key, after a simple wind vane puzzle. This opens the west door of the Antechamber.
3. A broken lever mount exists in the greenhouse room, which is supposed to open the south door of the Antechamber. I have not been able to open this door yet, however I have obtained a broken lever item from the workshop. To note, the workshop will allow the Sledgehammer or the Shovel to be combined with the broken lever, however it also wants a 3rd input I have not determined yet.

Rooms:
Security room: The terminal's password is swansong (most likely a reference to H.S. Sinclair's niece Mary Matthew Jones (Marion Marigold), who wrote under an avian pseudonym, and stopped writing after a terrorist attack that she was somehow involved in). Blue memos are true, red memos are false.
Chapel: While it takes 1 coin every time you enter this room, money can be re-obtained once by lighting the candles using the combined items of magnifying glass and metal detector. The stained glass windows also are numbered with different gods/goddesses(?) which all have different themes. The gardener's journal refers to the goddess in window 1.
Office: I have not yet discovered the code to the safe, however there is a red memo that can be found in the conference room stating the password is 9083. Accessing the email allows for the solution to the VAC puzzle on the breaker box.
Music room: Contains sheet music 1-4, which contain the bold words {first} {word} {on} {the}. Combined with the 8th page found in the workshop, {message}, I suppose that it reads "First word on the pages is the message." This results in " Find among the white _ _ _ stones. This might be related to the flowers alluded to in the gardener's journal in the apple orchard. Alternately, this might refer to the dig spot between stones near the campsite near some white trees, which unlocks the conservatory room blueprint.
Laboratory: Reading the periodic table with the numbered chart results in " Push three up after nine." Most likely to do with the lever puzzle, but unconfirmed as I have not seen the Boiler room yet. There is an experiment chart on freezing water that refers to the Freezer, which I have not been inside yet, but saw in the draft list (on rank 8 or 9? Cannot remember which.)
Workshop: Combining different items results in new items. Magnifying glass and metal detector allows you to light candles and ignite fuses. Candles can be lit in the Chapel, I have not found any fuses yet, it does not refer to the missing breaker for the cabinet on the breaker box. It might be for something crafted in the laboratory. Additionally, the sheet music refers to hand carved stone, which I was able to observe on day 2 as the letter E, and day 3 as the letter L.

[Arrow]

thanks for the tip!
I remembered that the archive room has a bunch of dates btw
heres a list:
aug 22-'85

jan 27-'86

nov 11-'86

nov 17-'?? (presumably 86 still based upon the article)

feb 21-'87

sep 2-'??

Other random dates
Parlor letter: May 2nd

Office Terminal Emails:
Nov 1 1993 (11-01)
Oct 8 1993 (10-08)
Oct 7 1993 (10-07)
Oct 5 1993 (10-05)

ive tried punching a bunch of them in in different formats into the drawing room with no luck however

[Arrow]

oh also the wine cellar numerals on the family crest are 1213

[coolbarryo]

Ursprungligen skrivet av Arrow:

oh also the wine cellar numerals on the family crest are 1213

Noticed this as well. didnt work anywhere i've tried thus far

[Paper Boat]

I found the office safe combination, it is 0303, found by using the letter in the drawer. The bold titled book March of the Count, results in 03 for March, then the second 03 is from counting the number of miniature busts of the Count, as seen in the large bust atop the office safe.

[coolbarryo]

Ursprungligen skrivet av Paper Boat:

I found the office safe combination, it is 0303, found by using the letter in the drawer. The bold titled book March of the Count, results in 03 for March, then the second 03 is from counting the number of miniature busts of the Count, as seen in the large bust atop the office safe.

Awesome!!! good find! am re-rolling over and over for labratory+boiler room flame currently

[Arrow]

i came across the drafting studio in my search if you have the magnifying glass you can inspect the model safe and enter a code, im convinced that this image on the calendar has to do with it but havent been able to crack it yet
https://imgur.com/a/9Axijlb

the room also contained a treasure map with an x on room row 2 column 5

in a book about drafting rooms, there were the names of two of the stained glass window gods in the chapel, facing towards the front of the room on the left is Dauja (cursive hard to read could be wrong) and on the right is Lydia

[coolbarryo]

Ursprungligen skrivet av Arrow:

i came across the drafting studio in my search if you have the magnifying glass you can inspect the model safe and enter a code, im convinced that this image on the calendar has to do with it but havent been able to crack it yet
https://imgur.com/a/9Axijlb

the room also contained a treasure map with an x on room row 2 column 5

The map is a somewhat regular item you can find in other rooms too. you need a shovel and it gives you
40 gold

[coolbarryo]

Ursprungligen skrivet av Arrow:

i came across the drafting studio in my search if you have the magnifying glass you can inspect the model safe and enter a code, im convinced that this image on the calendar has to do with it but havent been able to crack it yet
https://imgur.com/a/9Axijlb

the room also contained a treasure map with an x on room row 2 column 5

apples on the trees? 3442?

[Paper Boat]

Also of note as I did not see it mentioned earlier in the thread, there is a safe in the Study room. I have not been able to figure out its code yet.

[Arrow]

ive tried a bunch of stuff like that, but seeing all the emphasis on dates makes me feel like it should be formatted similarly so 4 digits representing a month followed by a date, so anything above 1231 doesnt work

also pretty sure the drawing room safe has something to do with the pictures, there are 5 types and the format has a similar vibe to the solution for the office safe, i suspect theres some relevance to the direction the subjects are walking in as well

[coolbarryo]

More spoilers:
I just found the 4th permanent buff by completing the boiler room/laboratory puzzle. I've received a microchip. Any idea where it goes? additionally, there is a disabled terminal that provides the would-be buff in the room so maybe the microchip is disabled?

[coolbarryo]

Ursprungligen skrivet av Arrow:

i came across the drafting studio in my search if you have the magnifying glass you can inspect the model safe and enter a code, im convinced that this image on the calendar has to do with it but havent been able to crack it yet
https://imgur.com/a/9Axijlb

the room also contained a treasure map with an x on room row 2 column 5

in a book about drafting rooms, there were the names of two of the stained glass window gods in the chapel, facing towards the front of the room on the left is Dauja (cursive hard to read could be wrong) and on the right is Lydia

The image contains eight small gates btw. not rly sure what that means tho

[Arrow]

yeah i did notice that, but couldnt find a way to work it in

[Paper Boat]

Okay, so I have managed to draft the Freezer room. It contained gems and keys frozen on the shelves as well as a cooler that had what looked to be the secret garden key and a note.
Upon drafting the Furnace room, the freeze on my accounts thawed, and while standing in the freezer room the temperature gradually rose until reaching 17 degrees C, notably just below the temperature for a full thaw according to the note in the laboratory. This allowed me to pick up the items on the shelves, but not the secret garden key or the note.
The thaw also revealed a secret partition to the room which contained an upgrade disk, a note, and 2 backup servers. The note said that the backup servers would be kept in cold storage until needed, and could be used to replace the servers kept in the grotto off the East Drive. There was also included an admin key - RevaD

[coolbarryo]

Ursprungligen skrivet av Paper Boat:

Okay, so I have managed to draft the Freezer room. It contained gems and keys frozen on the shelves as well as a cooler that had what looked to be the secret garden key and a note.
Upon drafting the Furnace room, the freeze on my accounts thawed, and while standing in the freezer room the temperature gradually rose until reaching 17 degrees C, notably just below the temperature for a full thaw according to the note in the laboratory. This allowed me to pick up the items on the shelves, but not the secret garden key or the note.
The thaw also revealed a secret partition to the room which contained an upgrade disk, a note, and 2 backup servers. The note said that the backup servers would be kept in cold storage until needed, and could be used to replace the servers kept in the grotto off the East Drive. There was also included an admin key - RevaD

you may be able to defrost with the magnifying glass+metal detector item?

looks like you may need to have the chip, furnace room, and freezer room all in the same day