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Lost Sanity: Cthulhu header image
Released Sep 2, 2026 $7.19 · −20% Positive Not counted on Steam profiles yet

Lost Sanity: Cthulhu

By Manin Studios · published by ZNT Productions

Followers —
Reviews 11 Positive
Players now 0 Peak today 0
Followers, 30 days — Not enough history yet

About Lost Sanity: Cthulhu

Lost Sanity: Cthulhu is a game tagged Lovecraftian, Horror and Psychological Horror by Manin Studios, released Sep 2, 2026. It has 11 Steam reviews (Positive). The Steam games most like it include Backrooms: Exit from Supermarket, Venatrix and Quantum Resonance.

On Halloween night, a group of teens tells horror stories, and each one comes to life in Lost Sanity. In the first chapter, Call of the Sea, you play as Megan Claire, trapped in an underground prison while cultists awaken a marine entity; slip through shadows, follow clues, and guard your sanity.
From the Steam page

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Steam data

Everything Steam lists for Lost Sanity: Cthulhu · record updated 18 hours ago

Steam store

Overview

App ID4219890
Release dateSep 2, 2026
Last change number39323160
Last record update18 hours ago

App info

App type
Game
Developer
Manin Studios
Publisher
ZNT Productions
Steam profile
Not counted yet: Steam is still getting to know this game, so it doesn't add to game counts or achievement totals · checked 1 day ago
Franchise
ZNT Productions

Platforms

Windows

Features

3
Single-playerSteam AchievementsFamily Sharing

Related apps

Prices

Price · US$7.19
On sale41 of 41regions right now
Lowest seen · US$7.19Oct 23, 2026
Checked7 hours agoin 41 regions

China¥CNY

Every price change is kept from Oct 23, 2026 on. Pick a region below to compare.

Patches

Patch notes

3
  1. Sep 22, 2026 BUG FIXES V1.3

    V1.3 BUG FIXES: Fixed a bug where the music volume could not be adjusted.Fixed a bug that allowed the flashlight to be turned on/off during jumpscares.Fixed a bug where the Mutant would sometimes not move.Fixed a minor bug with the Splash …

  2. Sep 5, 2026 BUG FIXES V1.2

    V1.2 BUG FIXES: Fixed checkpoint saves in the Cave level. Fixed the position of the paintings. Fixed some broken textures. Added another piece of cover to the Mutant's area. Fixed several other minor bugs.

  3. Sep 3, 2026 BUG FIXES V1.1

    V1.1 BUG FIXES: Fixed a T-pose model appearing behind one of the doors in the House. Fixed a visual bug in the credits. Fixed the Mutant getting stuck at the cave entrance door. Added a new sound effect to Sparky's plushie. Added a new mes…

Builds

1
BuildBranchUpdated
25460539publicSep 22, 2026

Packages & DLC

DLCs

1
IDNamePrice (US)
4955280 Not on the store yet —

Depots

Depots

3
IDNameSystemsSizeDownloadManifest
228989 — shared from 228980 Windows — — —
228990 — shared from 228980 Windows — — —
4219891 — Windows 7.84 GB 6.65 GB 4520998042892740213

Branches

1
BranchBuildUpdatedAccess
public 25460539 Sep 22, 2026 Open

Configuration

Install foldersteamapps/common/Lost Sanity Cthulhu

Launch options

1
ExecutableArgumentsSystemsDescription
Cthulhu.exe Windows

Achievements

Achievements106 hidden
Most unlocked94.7%Once upon a time
Rarest33.6%Hills of Death

Global unlock rate

share of players who have it
  • Once upon a time Begin the story of The Call of the Sea. 94.7%
  • In silence Hidden achievement 77.8%
  • Pururum the Cat Hidden achievement 72.6%
  • The Horror in Clay Hidden achievement 65.2%
  • So close Hidden achievement 49.4%
  • Awaken Hidden achievement 35.7%
  • Among us Finish the game. 35.7%
  • Oh! Credits! See all the game credits. 34.7%
  • Hurry! Hidden achievement 34.7%
  • Hills of Death Discover the easter egg of the game "Sparky: Hills of Death" 33.6%

News

  1. Sep 2, 2026 · Community Announcements CALL OF THE SEA - LOST SANITY EPISODE ONE IS HERE

    The wait is finally over! We’re incredibly excited to announce that Episode 1 of Lost Sanity is NOW AVAILABLE!And we couldn’t have done it without you. Your support during our Kickstarter campaign pl…

  2. Aug 8, 2026 · Community Announcements RELEASE DATE - TRAILER

    NEW TRAILER announcing the release date of Lost Sanity: Cthulhu!Lost Sanity: Cthulhu will be released on 09/02/2026, a short but fun game where you'll have to hide and run for your life. WATCH THE TR…

  3. Mar 9, 2026 · Community Announcements LOST SANITY OFFICIALY FUNDED

    You answered the call... and the game SURPASSED its goal, reaching over 140% of the original target. We are extremely grateful for all the support, Cthulhu is approaching... and soon you will be able…

  4. Feb 2, 2026 · Community Announcements SUPPORT US ON KICKSTARTER (DEMO OUT!)

    You meddled with the unknown, and now it stares back at you.Our DEMO is now available to play! Join us as we dive into a world of darkness and cosmic nightmares…We are launching the game’s crowdfundi…

  5. Dec 16, 2025 · Community Announcements LOST SANITY IS HERE + SUBSCRIBE TO THE PRE-LAUNCH PAGE ON KICKSTARTER

    Hello, everyone! We are proud to reveal Lost Sanity: Cthulhu to you all. This is a very passionate work from us to the horror community, and we can't wait to reveal everything we have prepared for yo…

Data from public Steam pages, updated daily; 5 days of history. LaunchRivals is not affiliated with Valve or Steam.