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One-Time Trigger

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One-Time Trigger screenshot 1

One-Time Trigger

ruren studio · Published by ruren studio

Content notice: This game contains the following content: 【Violence】 • Players can use firearms to eliminate characters, including descriptions of death scenes • Some death endings involve violent descriptions such as characters being "torn apart" • Contains bloody visual content: bleeding eyes, wounds, etc. 【Horror & Thriller】 • Horror atmosphere and jump scare elements • Psychological horror: identity anxiety, themes of mental breakdown • Supernatural horror elements: doppelganger replacement, mirror world, etc. 【Sensitive Themes】 • One ending involves a suicide scene (character points gun at themselves) • Descriptions of characters experiencing mental breakdown and cognitive collapse • Themes of death and near-death experiences • Dark worldview where a cold organization treats people as "consumables" 【This Game Does NOT Contain】 • Sexual behavior or sexual violence • Drug or alcohol abuse • Encouragement or instruction regarding self-harm This game is entirely fictional and recommended for mentally mature adults.

Last updated 28 Sept 2026

Observe seven patients. Identify the one anomaly. Shoot to survive. You have only one bullet and no room for error.

Free to PlayComing SoonDJCTQ 12

Free

View on Steam

Prices can lag the live Steam store — always confirm before buying.

Indie · 2026 · More free games

About this game

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【Providence Special Care Facility · Onboarding Test Briefing】

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To the Test Subject:

Thank you for passing initial screening. Please read the following test briefing.

【What You Will Face】

• Deduction Challenge: 7 patients, 1 doppelganger — find out who is no longer themselves

• Atmospheric Horror: Eerie environments, bizarre reality

• Moral Choice: Eliminate the doppelganger, or mistakenly kill an innocent patient?

【Test Purpose】

Providence Special Care Facility is dedicated to providing professional care

services for special patients. To ensure care safety, the Facility needs to

regularly replenish frontline nursing staff with crisis management capabilities.

We are now conducting an onboarding test program to screen individuals possessing

the following qualities:

• Ability to maintain rational judgment under extreme stress

• Acuity in promptly detecting patient identity anomalies

• Psychological fortitude to decisively execute safety measures

【Test Scenario】

You will enter our closed care facility, which houses seven special patients.

Among them is one doppelganger. The doppelganger is a dangerous invasive entity

with mimicry capabilities, able to perfectly replicate the appearance, memory,

and behavioral patterns of the replaced individual.

The Danger of the Doppelganger:

• The doppelganger will continuously replace real patients, causing the original

patients to disappear permanently

• If not eliminated promptly, the doppelganger will replace more patients and

eventually seize control of the entire facility

• The existence of the doppelganger poses a serious threat to all patients and

nursing staff

Your mission: Using the single issued bullet, identify the doppelganger and

eliminate them, thereby protecting the safety of the remaining patients.

【Test Procedure】

Phase 1: Information Gathering

Enter each care room, converse with patients, investigate room items, and collect

clues regarding the doppelganger's identity. Note: Some care rooms have special

entry conditions requiring specific items to be obtained first.

Phase 2: Deductive Analysis

Compare patient testimonies, observe environmental change signs, and verify

item reactions. Consolidate all information to identify the room where the

doppelganger is hiding.

Phase 3: Elimination Execution

Proceed to Care Room 2 to retrieve your issued weapon. After loading the bullet,

enter the room you have identified and execute elimination on the target.

【Test Rules】

• You are issued only one bullet. Accidental termination of a real patient

constitutes test failure.

• Failure to complete elimination within the designated time constitutes test

abandonment.

• The doppelganger may mimic any patient, or even room items themselves.

• Some care rooms have special rules; violations will result in immediate test

termination.

【Test Description】

• This test involves special medical cases and high-stress simulations

• Environmental changes may occur during testing: lighting abnormalities,

whispering sounds, temperature fluctuations

• Some patients possess special properties; please maintain rationality

• If you experience severe psychological discomfort, you may terminate the

test at any time

【Special Notice】

The Company assumes no liability for any consequences resulting from test failure.

Any physiological or psychological injuries sustained during the test period

are considered risks you voluntarily assume.

For those who pass the test, the Company will fulfill the commitments outlined in

the "Onboarding Test Employment Agreement."

We look forward to working with you.

Providence Special Care Facility

Human Resources Department · Personnel Screening Unit

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System Requirements

Will my PC run this? →

Minimum

Minimum:
  • Requires a 64-bit processor and operating system
  • OS: win7/win10
  • Processor: Intel Core i5-6400 or AMD FX 8320
  • Memory: 4 GB RAM
  • Graphics: NIVDIA GTX 1060 6GB
  • DirectX: Version 9.0c
  • Storage: 500 MB available space

Recommended

Recommended:
  • Requires a 64-bit processor and operating system
  • OS: win7/win10
  • Processor: Intel Core i5-6400 or AMD FX 8320
  • Memory: 8 GB RAM
  • Graphics: NIVDIA GTX 1060 6GB
  • DirectX: Version 11
  • Storage: 800 MB available space

Supported Languages

English, Japanese, Simplified Chinese

Latest news

  • AnnouncementsOfficial

    Statement on the Use of Art Assets in Promotional Materials and Related Updates

    Dear friends following One-Time Trigger,Regarding the use of certain art assets in the recently released development log video (now taken down), we provide the following clarification:During the early Game Jam prototyping phase of the project, some artwork created during external collaboration was utilized. These assets were not fully replaced in subsequent development and were inadvertently included in recent video materials intended to showcase progress.Upon identifying this issue, we immediately removed the video and related promotional content, while simultaneously initiating a comprehensive self-review and replacement process.The following steps are being taken:All promotional materials involving the relevant assets (including but not limited to the Steam page, promotional videos, and social media content) will undergo a complete replacement.Re-released content will exclusively feature independently created artwork or materials with explicit authorization.The official release version will not include any external resources with unclear ownership.The replacement and update process is now fully underway. Content on our official channels will be prioritized for updates, and for materials pending platform review, we have submitted update requests and are actively following up.We consistently value the rights of creators and content compliance. This issue arose from oversights in asset management, and we have since optimized internal processes to prevent similar occurrences in the future.Thank you for your supervision and understanding.Sincerely,Ruren StudioJune 7, 2026
    Read full article on Community Announcements (呱斯塔)

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