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 July 11, 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.
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.
Lore verified against community data; theories are labeled as theories. Last checked: July 11, 2026.