Sometimes they'll also spawn in rooms that aren't connected to the player's location, such as a security checkpoint, and will be trapped inside until the player leaves and they despawn.

Artificial Stupidity: NPCs frequently get stuck on stairs, which can be good if you're trying to escape a hostile SCP.

Strychnine, Arsenic Trioxide, Nitrobenzene, Mercury, Epichlorohydrin, Acetone Thiosemicarbazone, and spiders. Message: When dining at the facility cafeteria, always remember to check your ration for the deadly seven.

Arson, Murder, and Jaywalking: One of the 'cheery' Channel 3 radio messages go over the 'Deadly Seven', covering several dangerous substances you could consume, including spiders.

106's face is among the Brown Note images displayed by 895. Approaching the latter will spawn the former, and one area of his Pocket Dimension (the part resembling a World War I trench) has several of the coffins dotted around the map.

Arc Welding: The game seems to imply a correlation between SCP-106 and SCP-895.

The log ends by specifically mentioning D-9341, telling them that she is expecting him. She left behind notes which detail several creepy events happening, such as their headset playing soft music and an almost comfortable atmosphere.

Apocalyptic Log: An agent by the name of Izumi Junko got sent into SCP-860-1 at some point before the player enters it.

The feline-like creature which stalks the player in SCP-860-1.

SCP-939, a Voice Changeling that uses the voice of its victims to draw more prey near in order to devour them.

Presumably these are some of his victims, kept alive indefinitely so he can torture them at his leisure.

And I Must Scream: One room in SCP-106 's Pocket Dimension is filled with what look like coffins, from which muffled sobs and whispers can be heard.

Amplifier Artifact: SCP-914 when set on Fine or Very Fine, though this can backfire depending on the object.

Having read the wiki and knowing what the designations refer to helps immensely in avoiding walking into rooms with murderous occupants.

All There in the Manual: While the game does provide documents explaining the nature of the SCPs you come across, getting those generally requires entering the cells in the first place.Affably Evil: SCP-049, judging from his quotes.The game's version of the character became invoked Ascended Fanon when 049's article was rewritten in May 2018, not only making this personality change official but bringing back the same voice actor, TheVolgun, to read his lines. At the time he was added to the game, his entry on the wiki characterized him as a Silent Antagonist with a sense of Blue-and-Orange Morality despite this, the game made him more of a Cold Ham who is quite chatty while pursuing the player around the facility. Adaptation Personality Change: An interesting example with SCP-049.SCP: Containment Breach contains examples of:

Scp containment breach machine