In this guide, I show how to unlock every achievement in Casualties Unknown, including progression, challenging, gameplay, and secret achievements. I have organized all achievements into separate categories and included the requirements and instructions for each one to make completing the game easier.

Some achievements require completing specific endings, reaching certain layers, crafting special items, or surviving dangerous encounters. I will update this guide as new achievements are added.

Progression Achievements

These achievements are unlocked by progressing through the game and completing different endings.

Company’s Best

Complete the mission.

• Complete the Bio-pod ending.
• You need to finish the game with a chip.

Millions to One

Obtain the cargo.

• Reach Layer 10 and obtain the cargo.

Consolation Prize

Over halfway there.

• Reach Layer 5 or Layer 6. (I’m not sure which layer is required.)

Cannon Fodder

Finish a run as an Experiment.

• Complete a run as an Experiment.
• Any ending counts.
• Unlocks Milky.

The Marksman

Finish a run as Milky.

• Complete a run as Milky.
• Any ending counts.
• Unlocks Dune.

The Cannibal

Finish a run as Dune.

• Complete a run as Dune.
• Any ending counts.

Company’s Worst

Get your freedom.

Get the Escape ending.

1. Start a run without a chip.
2. Bring any firearm to the laboratory.
3. Kill the scientist after the dialogue.
4. Escape the laboratory.

I recommend watching a YouTube guide if you need help with this ending.

To Be Continued…

Fail the mission. Catastrophically.

Get the Mercenary ending.

Requirements:

• Complete either the Bio-pod or Escape ending at least once.
• Start a Chipped Run.

How to get it:

1. After leaving the life-pod, go straight down and find a Tech-Ball.
2. Break the Tech-Ball and obtain the Nano-tech Scanner.
3. Use the Nano-tech Scanner before leaving the first layer. It drops from the Tech-Ball.
4. ALWAYS KEEP THE NANO-TECH SCANNER IN YOUR INVENTORY.

Your main objective is to craft the M.E.R.C. Scarf. To craft it, you need to collect six specific chips. The Nano-tech Scanner will show you the direction of each chip.

Collect the following chips from their respective layers:

After collecting all six chips, craft the M.E.R.C. Scarf using a Scarf, a Circuit Board, and all six chips.

Crafting requirement: 18 INT.

Finally, reach the surface with the M.E.R.C. Scarf anywhere in your inventory.

Challenges Achievements

These achievements are a bit harder to unlock and may require some preparation.

TOP OF THE FOOD CHAIN

Become the apex predator.

• Kill the Elder Thornback boss.
• The boss spawns in Overgrown Depths.
• The easiest way to kill it is by using two Dynamites.

Survival Veteran

Reach level 16 in each skill.

• Reach Level 16 in every skill.
• I’m not sure about the easiest method, but Endless Mode might be the best option.

Not a Care in the World

Reach max. happiness.

• Find a Mini-barrel containing a large amount of Fentanyl.
• Drink it to increase your happiness. This should work.

Leukocyte Overflow

Have 200% immunity.

• Find a Mini-barrel containing a large amount of Antibiotics.
• Drink them to increase your immunity. This should work.

In and Out

Beat the game in under 3 hours (in-game time).

• Complete the game within three hours of in-game time.
• Use Drill Pods to skip some layers and save time.

Lightfooted

Complete a layer without ragdolling from a fall once.

• Complete an entire layer without ragdolling from a fall.
• The easiest way is to carefully make your way through the first layer.

Heavy Metal

Smelt a titanium slab.

Craft a Titanium Slab using the following materials:

• Ilmenite Chunk
• Bio-chem Fluid (50 mL)
• Any item with Hammering quality
• Any item with Cutting quality

Certainty of Steel

Have 4 P.E.O. limbs attached simultaneously.

Good luck losing all your limbs and attaching some of the most expensive prosthetics in the game.

Honestly, I recommend trying Endless Mode and hoping for the best.

Crafting requirements:

• Titanium Slab – At least 90% condition
• Titanium Sheet (x3)
• Chunk of Plastic (x2)
• Circuit Board (x2) – At least 90% condition
• Bundle of Wires – At least 90% condition
• Any item with Nails quality (x1) – At least 100% condition
• Bio-chem Fluid – At least 30 mL
• Any item with Hammering quality (x1)
• Any item with Cutting quality (x1)

…

Become hollow.

• Use Mindwipe to unlock this achievement.

Special thanks to opie and creature™ for the information.

Center of Attention

Have 6 manifestations active at once.

• Manifestations are enemies found in the Crystalline Hollow Layer.
• Have six manifestations active at the same time.

Pacifist

Kill no guards during the escape sequence.

• Complete the escape sequence without killing any guards.
• Just try to run for your life.

Round and Round We Go…

Loop an endless run twice.

• Complete two loops in an Endless Run.

Gameplay Achievements

These achievements are easy to get and can mostly be unlocked during normal gameplay.

Transhumanist

The flesh is weak.

• Replace any missing limb with a prosthesis.

Playing With Fire

It might come in useful…

• Fire a shot from any weapon.

It Refused

Let’s not give up just yet.

• Get the Last Stand effect after death.

Requirements:

• Brain Integrity must be 15% or lower, but above 0%.
• Consciousness must be below 30%.

Hoarder

Achieve 100% overencumbrance (without minibarrels).

• Collect as many items as possible until you reach 100% overencumbrance.
• Do not use Mini-barrels.

‘Tis but a Scratch!

Survive a bite from an Elder Thornback.

• Get bitten by an Elder Thornback.
• Survive for a couple of minutes after the bite.

My Survival Over Yours

They made you do it. That’s what you want to believe, anyway.

• Kill any survivor.

Ain’t That a Kick to the Head

Survive a gunshot wound to the head.

• Get shot in the head by a turret.
• Survive for a couple of minutes after getting shot.

Neural Enhancement

Use a neural booster.

• Use any Neural Booster.

Expected Outcome

Another one to the count.

• Die.

Good as New

Heal a fracture.

• Fix a broken limb using a Splint.

Graduate

Finish all the training courses.

• Complete all training courses.

Express Route

Use a drill pod.

• Craft a Drill Repair Kit.
• Find a Drill Pod and use it.

Dead Man Walking

Restart a stopped heart.

• Use an Automated External Defibrillator to restart a stopped heart.

Thermal Camouflage

Sneak past a turret through unconventional means.

• Your body needs to be cold because turrets react to warm temperatures.
• Use QCold to cool your body before sneaking past the turret.

Real Suck-Up

Reach max. reputation with a survivor.

• Increase your reputation with any survivor to the maximum level.

Secret Achievements

These achievements are hidden, so you need to perform some specific actions to unlock them.

Bright Idea

Really? You should know better!

• Put a Light Bulb into your mouth.
• Tasty!

Level One Breach

You can’t escape that easily.

• Break the glass during the tutorial.

Wrong Way

You’re supposed to go down!

• Start a new run.
• Go upwards and touch the invisible wall.

Reading Comprehension

Hey! The screen turned on!

• Find and use the E-PDA item.
• It appears near the life-pods.

Special thanks to opie for the information.

What Have I Done..?

Take your anger out on a little friend.

• Keep a Plushie in your inventory.
• Enter the Self-harm/Suicide minigame.
• Having a Plushie in your inventory will automatically cancel the minigame and restore some of your mood.

Special thanks to creature™ for the information.