Welcome to the game has a lot of mechanics tied to it, and if tried hard enough, you can get pass them. So the four villians you have to watch out for are the Police, Noir, Lucas, and The Breather.

Police:

The Police are frustrating, you have to keep a close eye on them. You can get notified when they're here by buying a Police Scanner, which costs 150 DOS Coins, or you can just simply hear out for the sirens. The sirens may not be for you, as another person may be commiting devious crimes on the Deep Web, so if you really want to be careful, I suggest disconnecting from the Wifi, turning off all the lights and hiding in the shower curtains for around 3-5 minutes. If you are successful, hop back onto the Deep Web and continue until you hear another siren, or the police scanner trips, then rince and repeat. Also, change the Dongle every 10 minutes (IN GAME) and change wifis, by cracking another one so the police can't track you.

The Breather:

The Breather is possibly the most scariest of the 4, the counter is annoying and takes times. So when heading out to grab your package (Not the one Adam sent you, any other one), you need to be careful and watch out for The Breather. When heading out, the door on your right exists for a reason, immediately go in there, close the door and look at the handle. You are able to use an action to hold the door, which you are going to do. When there just don't touch anything for 1 minute. If you hear footsteps coming towards you, hold the door until the bar reaches half way, then let go. The Breather will make his presence known by banging on the door. Each time he does that, hold the door until there is one quarter left. He will try to bang on the door 8 times, once the 8th time is over, count to 1 minute in your head before leaving. Once you do, grab your Care Package and run back inside to your apartment.

Noir:

Noir is the easiest one of them all, when running throughout the building, such as the balcony, the bed, all hallways, the stairwell, and the alleyway. When approaching him, his wife will come up behind you and beat you to death with a hammer. She can say the quotes, "Boo!" when behind you and she giggles when you're dead. When encountering him, immediately turn around for 30 seconds, that will make him disappear and you can continue. He can also appear at your window, where it will be much different. You must do the same strategy, although he may not disappear this time, if that is so, do it again. If your lights are out, they will already be inside your house, so be sure to keep them on. If your lights are out, they will make growling noises, hum and make stomping noises.

Lucas:

Countering Lucas is mainly based on RNG, he is extremely hard. So try to as little as you can to leave your apartment, because when opening doors in the building, Lucas has a %5 chance of spawning in front of it. Try to set up alarms on both end of the hallways to know as soon as he is around. You will know when he is there as he will try to pick the lock, so you will hear your doorknob move. When he does that, proceed to turn off all the lights and hide in the Shower Curtains for around 3-5 Minutes. When the time is up, get out and turn back on all the lights and get back on the computer. If Lucas knows you are in your apartment, he will hack your computer and steal your notes and DOS Coins, ALL OF THEM.

Possible Code Locations:

Heirloom (PGP Key, Press the ---BEGIN PGP PUBLIC KEY BLOCK--- Sentence)
St Louis Arch (The Aliens Page, Press Technology in the 2nd Paragraph)
Your Data (Press the word Pay under the contact number)
Don't Waste It (Press the picture of the woman, it will take you to a page where the code is on screen)
Share Your Genitals (Press Cannibals in the 1st paragraph)
Eye (Press the Eye)
I Love Cats (Press Never in the 2nd line)
Fifty Seven (Displayed on the right hand of the screen)
Borrow My Daughter (Next to the "Permanent Damage" sentence)
Fortune Cookie (In the bottom right corner)
-STILL BEING DISCOVERED-

Website Times:

DISCLAIMER: When finding codes or links, always put them on an actual notepad, physical or digital. If not, thanks to hacking and Lucas, you can lose all of that information.

00 - 14:

IAMHERE

00 - 29:

Borrow My Daughter
Deep Journal
Don't Waste It
YOU THERE?

33 - 44:

Ave Satan
Fifty Seven
Number Station
Your Data

45 - 59:

Fortune Cookie
Little Friends
THANATOS

30 - 59:

Brutal Underground
Red Triangle
The Hall

Never Available:

BathRoom Cams
Black Market
Burned At The Stake
Cheap Surgery
Chosen Awake
Corpses for Sell
Cotton Road
DeDo
DEEPDOTWEB
Dream Place
Family Drug Shop
Father Donald
Flame
Fudge You!
GAME CAT
Hackers4Hire
Hail Satan
Happy Family
Hot Burners
Illuminati
Legion
Passports R US
Roses Destruction
Secure Drop
SKY WEB
Snuff Portal
Tango Down
The 8th Sin

How To Get Most DOS Coins:

Dead Links: For me, I beat the game by doing 'Deak Links'. It's where you go onto a Dead Link, such as DeDo and buy a few backdoor hacks. I then connect to the same Wifi I was already on THEN I reload the site. Rince and repeat that until you get hacked. Your 5th or 6th hack that you blocked you get about 150 DOS Coins. Remember that the Dot Minigame doesn't give you any DOS Coins, so intentially fail that to go onto another hack.

VPN Locations: When placing my VPN's in the building, I went for the inside of Floor 5 and near Floor 4. Since the game is based on RNG, the location may not be there, but most deifinitely near there. I bought 3 VPN's from Adam and every location I got, for the 1st VPN I got 6.36744 DOS Coins every 154 Seconds. For the 2nd one I got 7.57366 DOS Coins every 240 Seconds, and for the 3rd one I got 8.23626 DOS Coins every 254 Seconds. With this and the Dead Link, you can get the Key Clue incredibly fast., which costs 375 DOS Coins.

Wiki 2 and 3: The Deep Wiki II can be found in a Source Code in any Website. The Deep Wiki III can be found in the Rule of Three puzzle website.

The Doll Maker: The Doll Maker is a European immigrant who moved to the United States of America and turns women into sex dolls. He has grey hair, specs and a grey suit and black tie. If you visit the Doll Maker website with the door locked, you will hear the music box coming from the hallway. You won't be able to open the door, but only able to peep through. If you look through, there will be a doll that the Doll Maker carries away, followed by a power outage. When you turn the power back on and head back to your apartment, he will come from behind and put a knife to your throat, but he won't kill you. He will order you to find a woman in the building for him to turn into a doll. If you do, put the head that he gave you on the woman's door. If you take too long, he will jump you again, this time killing you. If you successfully complete it, he will give you a cue by a laugh or you will hear a woman screaming. He will then leave the head on your door, which means you have to find another woman.

Helpful Tips:
When killed by the Doll Maker, it still saves the game I believe. It also can have a key within the website.
Whenever waiting for the Websites to load, look at the window for Noir.
Source codes have a change to have a key, so be sure to look at Website Sources codes.
DO not enter The Doll Maker website, as it triggers the event.
Try to complete the game, as Adam is soon returning the Russian Kidnapper. So 5 Threats... Yeah.

How to find Keys: Finding the first key is hard, especially since there is a psycho killer hunting you down. You know the window where Noir can appear, which I explained in his counter? When visiting a website, that window can open. If the window is closed, the website doesn't have a code. It the window is open, the website has a code.