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.

[coolbarryo]

Opprinnelig skrevet av Binnie:

If it helps you need the pool room to unlock the boiler room. But I am sure you already know that.

I COMPLETELY FORGOT. thank you for the reminder! thats a huge help, ive been resetting all morning and had overlooked that.

Also, drawing room pass key is 0415

[Arrow]

oh, how did you get that? also i finally got the 4th perma unlock and microchip, i was hoping you just hadnt mentioned the last gas line, but i guess we're still looking for that

[coolbarryo]

Opprinnelig skrevet av Arrow:

oh, of course it is lol, also i finally got the 4th perma unlock and microchip, i was hoping you just hadnt mentioned the last gas line, but i guess we're still looking for that

Correct. I suspect it has to do with the freezer/boiler step or maybe the basement key?

[Arrow]

i was too slow, initially i mistook the code u said for 0451 how did u get the number?

[coolbarryo]

Opprinnelig skrevet av Arrow:

i was too slow, initially i mistook the code u said for 0451 how did u get the number?

I'd like to say i was super clever but I used brute force for this one. Just tried dates until i got it

[Paper Boat]

Opprinnelig skrevet av coolbarryo:

Opprinnelig skrevet av Arrow:

oh, of course it is lol, also i finally got the 4th perma unlock and microchip, i was hoping you just hadnt mentioned the last gas line, but i guess we're still looking for that

Correct. I suspect it has to do with the freezer/boiler step or maybe the basement key?

I suspect it will be more related to the basement key, as the gardener's notebook said that the inside of the house was fully converted off of gas to electricity. There was a note in the gemstone mine that said there was a cart blocking the mineshaft which needed to be opened from the other side, which may be where the other gas line is.

[Zorop]

Opprinnelig skrevet av Timbo Jones:

Very cool of you barryo, that makes so much sense! Curious that I didn't notice that sooner, I have it open a second monitor and cross reference the enter time! Do you understand why it's T in Gates and Dates? Because I came to a similiar conclussion but can't for the life of me figure out the painting words.

I think Arrow is onto something there
Story / Lore Spoilers
The second time you throw a coin to your Pazaro in the Rumpus Room, he tells you about 8 red letters and even mentions the paintings. The Christmas Letter is number 2 of them. I've managed to open another safe that's letter 3. The red letters seem to tell the backstory and are the McGuffin to look for. Especially considering what letter 3 tells you. The orchard doesn't get you a red letter. But! Pazaro mentions you'll only read 7 letters. Although it makes me wonder how that makes sense in the story.

Spoilers for the second safe in the following spoiler block

Puzzle Spoilers
The outer room Shelter has a time gated safe. You've probably seen the computer in the network at least. You can set a date and time when the safe can open. But what date is it? In a room I've only ever seen ONCE at all, the BluePrint room (forgot the name, it appeared after I drafted the Studio) there's a calendar on the wall and Day 1 is marked. It's November 7th (iirc). So you need to calculate the current day and look at one of the clocks to figure out which time it is. Set the safe one hour ahead and literally wait. Fortunately the ingame time is much faster, so it's like 5 minutes instead of an hour.

The maids left a message dated to you on the network as well. That's how i found day 1 date.

[G-Random]

I unlocked the fourth permanent addition called blackbridge grotto . It helps access an offline terminal everyday. However, I can't find where to lit the 4th blue flame there. There's only one chip and two empty chip slots, and a terminal that cannot be use in this demo.

[Paper Boat]

Opprinnelig skrevet av G-Random:

I unlocked the fourth permanent addition called blackbridge grotto . It helps access an offline terminal everyday. However, I can't find where to lit the 4th blue flame there. There's only one chip and two empty chip slots, and a terminal that cannot be use in this demo.

I found a promising lead in the Freezer room, which had 2 spare servers and a note about using them to repair offline servers in the grotto on the east side of the mansion. You need to also have a furnace room to access it to thaw the room. It also included an admin key RevaD, and another admin key can be found in the Servant's Quarters, RuotH most likely. I haven't found any concrete indication that Mr. Ruota's first name is in fact Hartley, but it seems most likely. Mr. Ruota might also be the new valet instead of Hartley, whose name might be on the note in the garage?

[CGA]

Opprinnelig skrevet av G-Random:

I unlocked the fourth permanent addition called blackbridge grotto . It helps access an offline terminal everyday. However, I can't find where to lit the 4th blue flame there. There's only one chip and two empty chip slots, and a terminal that cannot be use in this demo.

how did you do it?

[Paper Boat]

Something interesting to note, I am unsure as of yet if this is a bug or not, however using the
Blessing of the Berry Picker is resulting in some unusual rooms when used on the outside room. So far I have received the Observatory, notably only an unusual rarity instead of rare, and Morning Room, which is a rare room, however it was not yet added to my draft pool. So 2/2 on probably unintended rooms showing up based on the description of Blessing of the Berry Picker.

[CGA]

Opprinnelig skrevet av Paper Boat:

Something interesting to note, I am unsure as of yet if this is a bug or not, however using the
Blessing of the Berry Picker is resulting in some unusual rooms when used on the outside room. So far I have received the Observatory, notably only an unusual rarity instead of rare, and Morning Room, which is a rare room, however it was not yet added to my draft pool. So 2/2 on probably unintended rooms showing up based on the description of Blessing of the Berry Picker.

i think its intended, have had non draft pool too. one that requires other room first

[Amax]

Possibly a code for something? Found in Archives:

The number "56345645678" on a box.

It's a bit long to be a code. But it stands out amongst all the fake text squibbles in the rest of the room so IDK...

[CGA]

Observatory: if you turn telescope, so big lens is against where you turn upper wheel. (will have to run back and forth) There is a hatch in telescope, with BP planetarium

extra: planetarium; end day in room, get 2 stars next day

[Paper Boat]

Opprinnelig skrevet av CGA:

Observatory: if you turn telescope, so big lens is against where you turn upper wheel. (will have to run back and forth) There is a hatch in telescope, with BP planetarium

That's great info! Nice find.