Thresholds

The lab was the containment site of a secret institute, the Threshold Institute. Its staff caught strange things, held them in cells and gave each one a number; they called them thresholds. The oldest is the rift, which the Institute was built around long before the pollution, and things have always come out of it. When the Institute pushed the rift wide open, containment broke and what it held got loose. The lab is one of the raid sites.

The numbers follow the order in which the thresholds were found, so the case files read in that order tell the Institute’s history, from the tear in the mine to the fall.

Classes

The Institute ranked every threshold by how hard it is to hold:

• Class I: harmless while it is left alone.
• Class II: dangerous, and held in a cell.
• Class III: no cell holds it for long.

The catalogue

Number	Name	What it is	Class	Found	Where	Short
T-001	The rift	Place	Class III	Year 1	At the lab and in the rift	Watch
T-002	Rift stalker	Creature	Class II	Year 1	At the lab and in the rift
T-003	Rift brute	Creature	Class II	Year 2	At the lab and in the rift	Watch
T-004	Shade	Creature	Class II	Year 4	At the lab and in the rift
T-005	Echo	Creature	Class II	Year 5	At the lab and in the rift
T-006	Growth	Creature	Class II	Year 7	At the lab and in the rift	Watch
T-007	Mirror	Creature	Class II	Year 9	At the lab and in the rift	Watch
T-008	Dark room	Room	Class I	Year 11	At the lab and in the rift	Watch
T-009	Gravity room	Room	Class I	Year 14	At the lab and in the rift	Watch
T-010	Elsewhere door	Room	Class I	Year 14	At the lab and in the rift	Watch
T-011	Bigger inside	Room	Class I	Year 15	At the lab and in the rift	Watch
T-012	Quiet room	Room	Class I	Year 17	At the lab and in the rift	Watch
T-013	Cold room	Room	Class I	Year 18	At the lab and in the rift	Watch
T-014	Upside-down room	Room	Class I	Year 20	At the lab and in the rift	Watch
T-015	Replay room	Room	Class I	Year 21	At the lab and in the rift
T-016	The watchers	Room	Class I	Year 23	At the lab and in the rift
T-017	Shifting land	Place	Class III	Year 24	In the rift	Watch
T-018	Twin rifts	Place	Class III	Year 24	In the rift	Watch
T-019	Slow bubble	Place	Class III	Year 25	In the rift	Watch
T-020	Fast bubble	Place	Class III	Year 25	In the rift	Watch
T-021	Upward rain	Place	Class III	Year 25	In the rift	Watch
T-022	The hanging moment	Place	Class III	Year 26	In the rift	Watch
T-023	Listening field	Place	Class III	Year 26	In the rift	Watch
T-024	The well	Place	Class III	Year 27	In the rift	Watch
T-025	The copied camp	Place	Class III	Year 28	In the rift	Watch
T-026	Trader	Creature	Class I	Year 28	At the lab and in the rift	Watch
T-027	Statue	Creature	Class II	Year 29	At the lab and in the rift	Watch
T-028	Tether	Creature	Class II	Year 29	At the lab and in the rift	Watch
T-029	Choir	Creature	Class II	Year 30	At the lab and in the rift	Watch
T-030	Clockwork	Creature	Class II	Year 31	At the lab and in the rift	Watch
T-031	Hollow	Creature	Class II	Year 32	At the lab and in the rift	Watch
T-032	Cache mimic	Creature	Class II	Year 33	In the rift
T-033	Shard swarm	Creature	Class II	Year 33	In the rift
T-034	Pale Lantern	Object	Class I	Year 34	At the lab and in the rift
T-035	Still Watch	Object	Class I	Year 34	At the lab and in the rift
T-036	Mending Jar	Object	Class I	Year 35	At the lab and in the rift
T-037	Rewind Clock	Object	Class I	Year 36	At the lab and in the rift
T-038	Tomorrow Radio	Object	Class I	Year 36	At the lab and in the rift
T-039	Wish Compass	Object	Class I	Year 37	At the lab and in the rift
T-040	Blood Coin	Object	Class I	Year 38	At the lab and in the rift
T-041	Skeleton Key	Object	Class I	Year 39	At the lab and in the rift
T-042	Endless Battery	Object	Class I	Year 40	At the lab and in the rift
T-043	Alien skitter	Creature	Class II	Year 41	At the launch site and on the planet
T-044	Alien spitter	Creature	Class II	Year 41	At the launch site and on the planet
T-045	Burrower	Creature	Class II	Year 42	On the planet
T-046	Drifter	Creature	Class II	Year 43	On the planet
T-047	The pollution	Place	Class III	Year 43	In the open world and on the planet
T-048	Infected	Creature	Class II	Year 44	In the open world
T-049	Toxic wolf	Creature	Class II	Year 45	In the open world
T-050	Toxic boar	Creature	Class II	Year 45	In the open world
T-051	Mutant brute	Creature	Class II	Year 46	At the nuclear plant
T-052	Mutant crawler	Creature	Class II	Year 46	At the nuclear plant
T-053	Mutant sludger	Creature	Class II	Year 46	At the nuclear plant
T-054	Porcelain Mask	Object	Class I	Year 47	At the lab and in the rift
T-055	Warden	Creature	Class II	Year 48	At the lab and in the rift
T-056	Toxic mutant	Creature	Class II	Year 48	At your home

The Found column gives the year of the Institute’s calendar in which each threshold was found, and the Where column says where you meet it now. Each name in the table opens that threshold’s case file: the Institute’s full record of it with its addenda, the files before and after it in the story, and what it is in the game. A Watch link in the Short column opens the threshold’s page at its short video.