Game guide

Operation Yellow Guide: Three objectives and how they run

Operation Yellow [Chapter 2]

CHD Development Studio, Playing 58, Rating 89.9%

Creator CHD Development Studio

Playing 58

Rating 89.9%

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About

Overview

Operation Yellow Chapter 2 is a co-op horror survival game set deep beneath the Schell Creek mines, where a hallucinogenic yellow gas has twisted creatures into killers and locked the facility in emergency shutdown. You and teammates must complete three objectives and find the exit while avoiding Yellow, a monster that cannot be fought. This guide covers the objectives, how to survive the monster, co-op teamwork, and the badges you can earn.

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What is on this page

Contents

01 Three objectives and how they run Step 02 Surviving Yellow Tips 03 The security room advantage Warn 04 Badges worth chasing and what they require Table 05 Playing without spending anything Summary 06 Glossary Words 07 Common questions FAQ

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Three objectives and how they run

Step

In short You must finish all three objectives in order before the exit becomes available.

Every run follows the same sequence: blast the doors, purge the data center, then burn the evidence. Only after all three are done do you search for the exit.

Override blast doors find and trigger the facility's security doors to force them open.
Purge the data center clear out the data center, which is the second marked objective location.
Burn the evidence destroy the records of Experiments Y-35 and Y-36, the third and final objective.
Search for the exit once all three are done, locate and reach the exit to complete the chapter.

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Surviving Yellow

Tips

In short The deeper you go into the facility, the less you can trust your eyes.

You cannot fight or defeat Yellow. The deeper you go into the facility, the more hallucination effects distort your screen, your audio, and your sense of direction.

Tips worth knowing

Duck behind objects and structures to break Yellow's line of sight.
Move slowly and quietly whenever Yellow is nearby.
Not every strange sound means Yellow is close — hallucination effects intentionally fake you out.
If a teammate gets spotted, do not rush toward them.

The security room advantage

Warn

In short The cameras are a real tactical resource in the facility.

One badge is earned by locking Yellow completely out of the security room, and another by spending more than seven minutes total in the cameras without dying.

Worth watching out for

Using the security room cameras lets you watch Yellow's movements.

Locking Yellow out of the security room requires actively using the security door controls there.

Badges worth chasing and what they require

Table

In short Most badges reward specific behaviors and unlock in-game titles.

Several badges unlock in-game titles you can display. The table below shows what each one asks of you and which title it grants.

Badge	How to earn it	Title unlocked
Your True Purpose	Complete the Prologue	None listed
Escape the Lab	Complete Chapter 1	Survivor
Back 2 Back	Escape the facility 5 times	Veteran
Better Safe than Sorry	Lock Yellow completely out of the security room	None listed
A bit TOO Resourceful	Interact with every main lab security door	Resourceful
What a Camper	Stay in the cameras for more than 7 minutes total without dying	Camper
Har Har Har	Find all 11 Easter Eggs in the main facility	Freddy
A Brave Volunteer	Use the level 5 access pass and a code to unlock a hidden part of the lab	Cruel Fate
Deathless Run	Complete Chapter 1 without dying once	Immortal
Can't touch this.	Flash the monster more than 25 times throughout your run	Blind Bat
INSANITY SOLO	Complete Insanity Mode solo	Mortifier
INSANITY	Complete Insanity Mode	Insanity
Operation Yellow Chapter 2	Complete Chapter 2	Trial Keeper
Operation Yellow Chapter 2 Veteran	Complete Chapter 2 five times	Calamity
Operation Yellow Chapter 2 Deathless	Complete Chapter 2 without dying	Indefinable
Operation Yellow Chapter 2 Solo	Complete Chapter 2 solo	Lone Wolf
Group Member	Join the CHD group	Glowing effects (not a title)

Playing without spending anything

Summary

In short Every part of the story and all objectives are fully accessible without paying.

Joining the CHD group is free and gives you glowing effects in game. Everything else — objectives, escape, badges, titles — comes from playing.

Full story　playable from start to finish for free
CHD group bonus　free to join, rewards glowing effects

Glossary

Yellow: The monster created by the hallucinogenic yellow gas; it cannot be defeated.
Schell Creek mines: The location above the hidden underground facility where the game takes place.
Experiments Y-35 and Y-36: The records you must destroy as the third objective of every run.
Insanity Mode: A harder difficulty variant of the game with its own set of badges for completing it solo or with others.
Level 5 access pass: An in-game item used alongside a code to unlock a hidden section of the lab, tied to the Brave Volunteer badge.
CHD group: The creator's Roblox group; joining it is free and unlocks glowing effects plus the Group Member badge.

Common questions

FAQ

Can I play Chapter 2 without having played Chapter 1?

Yes. Chapter 2 is designed as its own self-contained story, so you can jump in without any prior experience with Chapter 1.

Is the game playable solo?

There is a badge specifically for finishing Chapter 2 solo.

The screen is glitching and I hear strange sounds — is something broken?

Nothing is broken. The game deliberately uses hallucination effects, flashing visuals, and unsettling audio as part of its horror design.

Updated Oct 28, 2026
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Operation Yellow [Chapter 2] CHD Development Studio, Playing 58, Rating 89.9%

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