Released May 5, 2026 Early Access Free Mixed Not counted on Steam profiles yet

Mannequin Syndrome

By Lak1z

Adventure Action-Adventure Action 3D Horror Team-Based Co-op Multiplayer Early AccessOnline Co-OpFree to PlayIndie

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Reviews 40 Mixed

Players now 0 Peak today 0

Followers, 30 days — Not enough history yet

Mannequin Syndrome is a game tagged Adventure, Action-Adventure and Action by Lak1z, released May 5, 2026. It has 40 Steam reviews (Mixed). The Steam games most like it include Backrooms: Realm of Shadows, Project Unknown Designation and Napped.

Mannequin Syndrome is a third-person action game with horror elements, playable solo or in 1–4 player online co-op. Enter the Syntrax Facility, complete dangerous objectives, restore critical systems, initiate the shutdown, and escape as the mannequin threat grows increasingly aggressive.

From the Steam page

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<a href="https://launchrivals.com/games/3722510-mannequin-syndrome"><img src="https://launchrivals.com/games/3722510/badge.png" alt="Mannequin Syndrome launch date" width="320" height="84"></a>

<a href="https://launchrivals.com/games/3722510-mannequin-syndrome"><img src="https://launchrivals.com/games/3722510/badge.png?theme=light" alt="Mannequin Syndrome launch date" width="320" height="84"></a>

Backrooms: Realm of Shadows 85% match · Adventure, Action-Adventure, Action
Project Unknown Designation 83% match · Adventure, Action-Adventure, 3D
Napped 83% match · Adventure, Action-Adventure, Action
Dead Sale 83% match · Adventure, Action-Adventure, Action
The Intruder 82% match · Adventure, Action-Adventure, 3D
Momo Mother Bird: Final Story 82% match · Adventure, Action-Adventure, Action
Fatal Delivery 81% match · Adventure, Action, 3D
No Work No Life 80% match · Adventure, Action-Adventure, 3D
Lost quest 80% match · Adventure, Action-Adventure, Action
Imaginary girl -Prequel- 80% match · Adventure, Action-Adventure, 3D

Steam data

Everything Steam lists for Mannequin Syndrome · record updated 1 day ago

Steam store

Overview

App ID3722510

Release dateMay 5, 2026

Last change number39323160

Last record update1 day ago

App type: Game
Developer: Lak1z
Publisher: Lak1z
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 Nov 1, 2025

Windows 64-bit

Single-playerMulti-playerCo-opOnline co-opFamily Sharing

Patches

Build	Branch	Updated
24489566	public	Jul 31, 2026

Depots

ID	Name	Systems	Size	Download	Manifest
3722511	—	All	1.99 GB	1.39 GB	7827190242372312913
3722512	—	Windows	—	—	—

Branch	Build	Updated	Access
public	24489566	Jul 31, 2026	Open

Configuration

Install foldersteamapps/common/Mannequin Syndrome

Executable	Arguments	Systems	Description
MannequinSyndrome.exe		All

Space per player100.0 MB

Filesup to 100

Save locations1

Root	Path	Pattern	Systems
gameinstall	SavesDir	*.sav	All

Achievements

Achievements22 hidden

Most unlocked4.8%Completed Tutorial

Rarest3.4%Certified Stabber

Completed Tutorial Hidden achievement 4.8%
Certified Stabber Hidden achievement 3.4%

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

Mannequin Syndrome

About Mannequin Syndrome

Steam data

Overview

App info

Platforms

Features

Patches

Builds

Depots

Depots

Branches

Configuration

Launch options

Cloud saves

Achievements

Global unlock rate