Find the vibrating cell phone to get a text message from someone named "Witness". Each text message will give a floor location. Check each room on the indicated floors. "Legendary Hero" will be earned after reaching the final location.
After encountering the old man sitting on a chair in a room, talk to him. He will want to barter something different each time he is found.
Go to the first floor and find the computer on the left-hand side. Use the computer to access a text document. Open the document and enter "mr.wgmthoot" as a password. A large amount of text will appear. Afterwards, exit the computer and leave the building.
Find the room with a computer that is not on the bottom floor. Select the computer and then the recycling bin icon. A document will appear on the computer's desktop. Select the document, and then choose "Print".
The Parasite rarely appears after killing an enemy. It resembles a pink slug. Consider using the perk that allows you to one hit kill an enemy to find it faster.
Craft an antidote as early as possible. There will be a chance that monsters will vomit on you and result in a poisoning. The poison will drop your health by 1 point each turn. Monsters that have bloated abdomens and skinny arms or legs are more likely to poison you.
Save all of your crafting materials after creating a very good weapon. Use them to upgrade the elevator panels that you fubd, If you do not have any materials, keep trying to fix them without resources or return later after they are obtained.
A bird will collide into a window inside one of the rooms. This is indicated by the sound of a window breaking when you enter a room. Pick up the object from the floor.
Notes can randomly be found as you progress. You will get different notes in a random order during each playthrough. You cannot collect all the notes in one playthrough. There are a total of 52 notes that must be found.
Enter the room with a very large desk and multiple screens. Select the desk to view a close-up of the screens. Exit this screen to earn "Security Guard".