Skip to content

T-056 Toxic mutant

Threshold Institute · Case file T-056

Toxic mutant
Number
T-056 in the catalogue
Kind
Creature
Class
Class II: dangerous, and held in a cell
Found
Year 48, month 9, day 30
Where found
A survivors' home on one of the islands
Status
Uncontained; the worse the air at a survivor's home, the more of each horde it makes up
Now
At your home
Written by
Tomas Rehn

None. There is nowhere left to hold it, and no one to hold it. What I can give is this: it comes only where people have settled and the air around them has gone bad, so the cleaner the air at a home, the fewer of them come. Keep the air clean if you can. Keep a gun for it that hits hard; it takes more to put down than the others.

An infected (T-048) changed further by foul air. It is slower than the infected and strikes far harder, and every blow leaves the poison in the wound. It comes with the hordes that break on the walls of survivors' homes at night, and the worse the air at a home, the more of each horde it makes up.

I write this in the Institute's calendar, since it is the only one I have kept. I am at a survivors' home on one of the islands, behind a wall the people here built from car doors and pallets. The air here is bad and getting worse. The hordes come at night, and last night one came in the middle of them that was not like the rest.

It took the whole wall's ammunition to put down. The man it struck on the wall, Mats, died of the wound two days later. The people here say there were none the first winter, and that there are more each month. I have seen the same at two other homes on my way here.

I give it the next number, as the Institute would have. Nobody holds it, and nobody will.

My own note, Year 48, month 10, day 4

I have the catalogue in a crate under a bunk and the radio (T-038) on the shelf above it. It still plays tomorrow's weather. Some nights it plays the other forecast, the dust storm and the cold night, and I turn it off before the static starts.

The people here ask me what I did before. I tell them I worked in a lab. Nobody here has heard of the Institute, and I do not tell them what we held, or what we let out.

I think the pollution follows us now, the way the infected always did. Where we settle, the air goes bad, and these come.

What I know, written down so it is not lost

Kerstin Holm wrote that something came back from the planet and the pollution spread from it (T-047). Its source is on the planet. The mask (T-054) showed that the rift holds an answer, and Anneli Sund's last page said where: further in, where the rest of her team went, a thing that opens what is at the bottom. The rift is open now, wider than it has ever been, and the warden (T-055) walks the level that leads to it.

I keep the catalogue. What I find out here I will number after this one.

The note you find in the game:

Year 48, month 9, day 30. I, Tomas Rehn, write this in the Institute's calendar, the only one I have kept, at a survivors' home on one of the islands, behind a wall the people here built from car doors and pallets. Last night one came in the middle of the horde that was not like the rest; it took the whole wall's ammunition to put down, and I give it the next number, as the Institute would have.

An infected changed further by foul air. It is seen only where people have settled and the air around them has gone bad, and it comes with the hordes that break on their walls at night.

Slower than the infected, it strikes far harder, and every blow leaves the poison in the wound. It takes more to put down.

Nobody holds it, and nobody will. Status: uncontained; the worse the air at a survivor's home, the more of each horde it makes up.

Today it is found at your home.

It goes down after losing 3000 ml of its 7000 ml of blood. How it hunts and where it turns up: see the zombies page.

Generated on 2026-11-13 from the game at commit b8361f1, rebuilt with every release (a release's name ends in its commit, e.g. build-…-b8361f1).

Every number on this wiki is read from the game's data files, and every icon is the game's own pixel art.

Credits: who made the game, and every creator whose sounds it uses.