Slenderman Must Die: Sanatorium 2021 is an official remaster of the first-person shooter game Slenderman Must Die: Chapter 1 — Sanatorium. Visit the gruesome asylum once again and find 8 hidden notes to summon Slenderman himself.
| Esc | F1 | F2 | F3 | F4 | F5 | F6 | F7 | F8 | F9 | F10 | F11 | F12 |
| ~ | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 0 | Bspace | |
| Tab | Q | W | E | R | T | Y | U | I | O | P | [ | ] |
| Caps | A | S | D | F | G | H | J | K | L | : | Enter | |
| Shft | Z | X | C | V | B | N | M | < | > | ? | Shift | |
| Ctrl | Win | Alt | Alt | Ctr | ↑ | |||||||
| ← | ↓ | → | ||||||||||
Slenderman Horror Story: MadHouse
The Dawn of Slenderman
Slenderman Must Die: Underground Bunker
Slendrina Must Die: The Asylum
Slenderman: Back to School
C-Virus: Outbreak
Night Watchmen Stories: Zombie Hospital
Granny 2: Asylum Horror House
Slender Zombie Time
Slendrina Must Die: The Cellar
