The story of Ratthew and Rattina is the emotional spine of the game's lore — and hers is the half told entirely in absences. You never meet Rattina — and that's exactly why she matters. Everything the story hints at (the experiment, the Corporation, the Stalker) runs through the sister who isn't there.
Ratthew's twin sister — "the smart one in the family"
The Animal Corporation, before she vanished
Lore-only so far: mentioned by Ratthew, photo in the Room 5 safe
Missing — fate unknown as of August 31, 2026
Ratthew's farewell gift is a key to the safe behind the cat poster in Room 5. What's inside is all about her:
A missing Corporation employee, filed next to proof of a successful experiment that made a "shadow" see everything — the community's leading theory is that the experiment created the Stalker, and that Rattina either ran from it, was silenced for it, or was part of it. The game hasn't confirmed any of the three.
Asking what happened to Rattina gets you a lot of confident answers online, so it is worth separating the four things the game actually puts in front of you from the conclusions people draw. Every row below is something you can see in-game; the right-hand column is what it stops short of establishing.
| What the game shows you | What it establishes | What it does not |
|---|---|---|
| Ratthew names her as his twin sister | She exists in the fiction, and she is family to a character who is explicitly not an anomaly. | Anything about where she is now — he is looking for her too. |
| She worked for the Animal Corporation, then vanished | A link between her disappearance and the organisation the whole plot circles. | Whether she left, was taken, or is still there. “Vanished” is Ratthew’s word, not a case file. |
| Her photo is in the Room 5 safe | Somebody at the hospital was keeping a file on her, and Ratthew took the key off a doctor. | Who kept it, or why. A photo in a safe is not a fate. |
| The note: the experiment succeeded, and the shadow now sees everything | That an experiment happened and something called a shadow came out of it. | That Rattina was the subject, the researcher, or a witness. The note does not mention her at all — it is filed next to her photo, which is proximity, not causation. |
Put plainly: the honest answer to what happened to Rattina is that the game has not said. She has no model, no dialogue and no scene — she is a name, a photograph and an absence. Any page that tells you she was experimented on, or that she became the Stalker, is filling in the same blank you are.
Rattina's TOP SECRET suitcase matches the ones carried by Dr. Harlow and Ron from Accounting — three separate storylines all pointing at the same Animal Corp secret. And the July 10 update added Liz, a journalist fired by Animal Corp for telling the truth about the infection. The cast keeps growing in one direction: toward whatever happened to Rattina.
Unknown — but the signals point that way: the developer keeps expanding the lore cast (Liz arrived barely two months after launch), Ratthew's storyline ends on her unresolved disappearance, and community demand is real enough that a fan-made Rattina plushie already exists as a Roblox UGC item. If she shows up in a future update, this page gets rewritten within a day.
Everything below is the character record: appearance, story role, what he or she knows, and where the open questions still sit — kept separate from the walkthrough above.
| Species | Rat — no confirmed description beyond a single photo |
|---|---|
| Role in the story | The disappearance every other thread leads back to |
| Animal Corp link | Worked for the Corporation, then vanished before the game begins |
| In-game presence | A photo in the Room 5 safe. That is all. |
Rattina is Ratthew's twin sister — described by him as "the smart one in the family." She worked for the Animal Corporation before she vanished, sometime before the events of the game.
There is no confirmed physical description of her beyond a photo — because as of this update, that photo is the only place she exists in-game.
Ratthew's farewell gift to the player is a key to a hidden safe in Room 5. Inside:
A missing Corporation employee, filed next to proof of a successful experiment that made a "shadow" see everything. The leading community theory is that the experiment created the Stalker — and that Rattina either fled it, was silenced by it, or was part of making it happen. The game has not confirmed any of the three.
The July 10 update added Liz, a journalist fired from Animal Corp's own news channel for reporting on the anomaly infection. Two women, one company, one still active and one missing — the pattern is consistent enough that most of the community reads Liz's arrival as connected to finishing what Rattina started.
Rattina is one of the 2 characters the game says actually worked for the Corporation. That is the strongest link anyone in this cast has — everyone else is connected through a person, an object, or not at all.
| Character | Link | What the game actually shows |
|---|---|---|
| 🐈 Liz | Worked for the Corporation | Worked for Animal Corp's news channel and was fired for telling the truth about the infection. |
| 🐁 Rattina ← this page | Worked for the Corporation | Worked for the Corporation, then vanished before the game begins. Her photo is filed in the Room 5 safe. |
| 🐭 Ratthew | Connected by family | No link of his own — his twin sister Rattina is the connection, and finding her is what his whole storyline is about. |
| 🦌 Dr. Harlow | Carries Corporation material | Carries a black suitcase stamped TOP SECRET in red — the same object that turns up in the Room 5 safe. |
| 🐰 Barney | No documented link | Nothing ties him to the Corporation. What he proves is separate and arguably worse: the screening scanner reads him green across all five visits. |
| 🦆 Officer Duckman | No documented link | The only character doing ordinary work for an ordinary reason. He is not investigating the Corporation — he is looking for one specific criminal. |
One object shows up three separate times, and it is the same object each time: a black suitcase stamped TOP SECRET in red. It is never opened on screen.
Three carriers, no contents. Treat any account of what is inside as invention — the game has not shown it, and neither have we.
Sorted by what each of them does with what they have, the cast falls into four positions — and Rattina is in the one labelled knew, and is gone. It is the only position with one occupant, because it is not really a position — it is an absence the other five keep pointing at.
| Character | What they know | What they do with it |
|---|---|---|
| 🐈 Liz Knows and tells you | That the infection is real, and that Animal Corp buried the story. | Tells you, and hands you a camera so you can gather the proof she was fired for trying to publish. |
| 🐭 Ratthew Knows and tells you | That a government is hunting him for what he uncovered, and that his sister disappeared into the same organisation. | Warns you to trust nobody in the building, then leaves you the key rather than the answer. |
| 🐁 Rattina Knew, and is gone | Unknown — whatever it was, it was worth disappearing over. | Nothing. She is gone before the game starts, and the only thing she leaves is a photograph in someone else's safe. |
| 🦌 Dr. Harlow Knows and does not say | Unclear, and that is the point. He carries Corporation material and has been seen outside the hospital talking to an animal in a hazmat suit. | Runs your tutorial, grades your shifts, and explains none of it. |
| 🐰 Barney Knows and does not say | What he is. He is the only character who knows he is an anomaly and behaves accordingly. | Asks you for coffee, a scalpel, and finally to hide him — never once explaining why any of it is necessary. |
| 🦆 Officer Duckman Does not know | Less than you do, by the time he arrives. He has a photograph and a name. | Asks his questions and acts on your answer — which is why the choice lands on you rather than him. |
Unknown, but the signals point that way: the developer keeps expanding the lore cast (Liz arrived barely two months after launch), Ratthew's storyline ends on her unresolved disappearance, and a fan-made Rattina UGC plushie already exists on the Roblox marketplace — real evidence the community wants her story finished. If she appears in a future update, this page gets rewritten the same day.
Ratthew's full arc — from anonymous rat to the source of the deepest lore reveal in the game.
Read About Ratthew →The game has not said. She is Ratthew's twin sister, she worked for the Animal Corporation, and she vanished — that is the whole of what is stated. Her photo sits in the Room 5 safe next to a note about a successful experiment, but the note never mentions her. Anyone telling you she was the subject of that experiment is guessing.
No. As of the last check she has no model, no dialogue and no scene — she exists as a name Ratthew says, a photograph in a safe, and an unresolved thread. That is why the question of what happened to Rattina has no confirmed answer yet.
Rattina is Ratthew's missing twin sister — 'the smart one in the family.' She worked for the Animal Corporation before disappearing, and her photo is one of the items hidden in the Room 5 safe.
Not yet. As of July 12, 2026 she's lore-only — mentioned by her twin brother Ratthew, and shown only in a photo hidden inside the Room 5 safe.
Unconfirmed. She worked for the Animal Corporation and vanished. Her photo is filed next to proof of a 'successful experiment' that made a shadow 'see everything' — the community theorizes she ran from it, was silenced by it, or was part of it, but the game hasn't said which.
Lore verified against community data; theories are labeled as theories. Last checked: August 31, 2026.