Mobile game · 2015

Sanatorium

Although billed as "Slender 2" on some articles and videos, Sanatorium is an unofficial sequel to Slender, developed by a different company, but using the same general idea and gameplay mechanics. As the name would suggest, Sanatorium takes place in an abandoned long-term health care facility, likely one designed for mental patients. The player needs to collect 8 pieces of paper ("pages") whilst evading the Slender Man. Unlike Slender, Sanatorium is only available for PC. Sanatorium also features more maps to play on such as "Hospice".

Oct 26, 2015Android iOSESRB 18USK 16

Adventure Point-and-click Horror

Get the game

Google Play App Store (iPhone)

What the estimate rests on

Google Play 59%
Steam 41%

Community activity

Last checked Aug 9, 2026

Store signals

How many people have rated, reviewed or installed Sanatorium where it is sold.

Google Play ratings

1,366

Average rating: 4.2
Installs: 10K+

First reading taken Aug 9, 2026 — the chart appears once there are two.

Steam players in game

Reviews: 1,355

First reading taken Aug 9, 2026 — the chart appears once there are two.

Community signals

How many people gather around Sanatorium outside the stores — members, subscribers and live viewers.

Twitch viewers

Live channels: 0

First reading taken Aug 9, 2026 — the chart appears once there are two.

Not tracked for Sanatorium: App Store, Discord, Reddit, YouTube. A platform appears here once the game has a link to it — most mobile games have no Steam port or subreddit, so a gap is normal rather than a sign the game is small.

Storyline

Not much is known about Max Laughton at first, but it is clear that he is conducting a particularly important research and is close to reaching his goal. Eager to share the good news with his family, Max hurries home in his car. However, somebody has evidently tampered with the vehicle; failing to control it, Max gets in a serious accident and loses his conscience. When he wakes up, he finds himself in a strange tower resembling an asylum, surrounded by insane people, the shrill sound of alarm driving him mad. Max cannot remember anything from his past and is feverishly trying to escape this place. But just when he thinks he has succeeded, he is taken on delusional, horrifying trips through his subconsciousness, unable to distinguish between reality and hallucinations.