CurseForge · Minecraft mod
ASPHYXIATION
The Incarnation Of Fear, but with horns.
Quick answer
Which ASPHYXIATION release should I use?
ASPHYXIATION Multiplayer Patch (1.1.1r, 1.19.2) targets 1.19.2 with Forge. The project page does not say whether this file belongs on the client, dedicated server, or both. All 1 required mods have matching files.
Where it goes
Is ASPHYXIATION required on the client, server, or both?
The project page does not say whether this file belongs on the client, dedicated server, or both.
The source does not explicitly classify this release as client-only or server-only.
What else does ASPHYXIATION Multiplayer Patch (1.1.1r, 1.19.2) need?
Multiplayer Patch (1.1.1r, 1.19.2). Change the file and its required mods may change too.
Install GeckoLib first. We found matching files for this game-version and loader setup.
We only count dependency files that match this setup. A file for another loader does not fill the gap.
Before you install it
Add ASPHYXIATION without breaking your instance.
Built for ASPHYXIATION Multiplayer Patch (1.1.1r, 1.19.2). Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use Multiplayer Patch (1.1.1r, 1.19.2). It targets 1.19.2 with Forge; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
Install GeckoLib first. We found matching files for this game-version and loader setup.
- 03
Put it on the correct side
The project page does not say whether this file belongs on the client, dedicated server, or both.
- 04
Pick the file you checked
Use the “Get this file” button beside Multiplayer Patch (1.1.1r, 1.19.2). It opens that exact file at the source.
About this project
What does ASPHYXIATION add?
**"**CANTBREATHE" is the manifestation of all beings fears. He maliciously seeks out his victims, wishing to cause and inflict unbearable pain to them. There is no real escape from this entity, and you are never truly safe.
This mod is a remake of the older versions of "CANTBREATHE" by ClouddyVR,**
because people weren’t fans of the red fleshy design or its repetitive dweller ai.
So this mod brings back the classic spooky black figure, gives him decently advanced ai,
and a new model with horns, cause what being called the 'incarnation of fear' wouldn't have horns?
What he does:
Normal "CANTBREATHE"
He spawns every 3-6 nights (configurable).
He will slowly walk to you, while stopping every 10 seconds,
then begins moving again after 5 seconds of being still.
If you spot him or you get into a 32 block radius,
it triggers a cutscene similar but not the same as the Cave Dweller's "spotted".
You will have 15 seconds to run as far away as you can before he eventually
roars loudly and gives chase.
if he catches up to you he holds you in place and
impales your head with his arm (instakill, configurable).
After you die, if theres another player in a 48 block radius he turns to chase them (configurable),
repeating the cycle if there are multiple players, else he despawns.
He despawns after 30 seconds (configurable),
but the timer multiplies by 2 when a player is killed.
example: he kills a player when theres 24 seconds left, now he has 48 seconds left,
so split up your group when he gives chase or else you're all probably going to die.
Silent "CANTBREATHE"
He spawns every 1-5 nights (configurable).
This variant is essentially cantbreathe but creepy, but overall less hostile,
has creepier sounds, a creepier look, and most notably the eyes are gone.
When he spawns, you will hear unnerving noises meant to instill fear,
and his 2 variants of AI are randomly picked to spawn.
AI : Levitator
Slowly levitates to you, arms reaching in a ghostly manner while a creepy
sound loops while it gets louder and louder as he gets closer.
But he doesnt stay slow.
He gets faster the closer he is to his target.
He reaches his max speed at a 16 block radius, a speed of 0.48.
For reference, the top speed of a player is 0.36 while sprint jumping.
If he catches you, a jumpscare will pop up instantly killing you.
He despawns after 2 minutes, or if he kills a player.
AI : Stalker
Heavily inspired from the "Disturbed" mod.
This variant spawns behind you and makes a creepy noise,
and it will stalk 3 blocks behind you at all times, trying to avoid eyesight.
If you spot him behind you, a jumpscare will pop up but it doesn't kill you.
However, if you dont notice him for 1 minute (configurable) his hands
will slowly creep in from the sides of the screen and this time a jumpscare
pops up that instakills you (configurable).
How to configure him:
There will be a file named "cantbreathe_asphyxation.toml" in your config folder.
"spawnmin" is the minimum amount of ticks he takes to start spawning.
"spawnmax" is the maximum amount of ticks he takes to start spawning.
"disappeartimer" is the amount of ticks he takes to despawn when aggressive.
"spottedradius" is the amount of how sensitive he is to getting looked at.
this is the block radius you have to look at for him to get aggressive,
think of it like a cube hitbox around him, if you look at that hitbox
he will get aggravated. this config allows you to change the size of that hitbox.
"instakill" a toggle for instead of the kill cutscene, it is replaced with normal damage.
"damage" only works if you have instakill set to false
"silentspawnmin" is the minimum amount of ticks the silent variant takes to start spawning.
"silentspawnmax" is the maximum amount of ticks the silent variant takes to start spawning.
There are more configuration variables, but they don't work yet.
It will be fixed in a future mini-update.
Known bugs:
OpticM3KH:
"when i managed to kill the silent one, he still kills me long after i kill it."
Reason: This user most likely used commands or a mod to kill the silent version, which is NOT MEANT TO BE KILLED! The silent version is designed to be countered and avoided, not confronted!
luxbro3789:
"when I disable the instant death animation, for some reason, when the mob hits me, it damages itself instead of me. I don't know if it's because I configured it wrong, but I'd like to find a solution."
Reason: I'm stupid and didn't playtest the configurable instakill config, instead of damaging the player cantbreathe tries to kill himself.
tree's cautionary notes:
1.Do NOT leave while a jumpscare/cutscene happens, this will have a high chance to bug and it will BRICK your world unless you uninstall the mod.
2.Do NOT try to kill him with commands unless he is bugged, if so then report it back to me.
If you do it anyway, there are many flaws in the code i have yet to fix and trying to /kill him will have a high chance to bug, and again brick your world.
At this point if you're killing him with commands just uninstall the mod.
3.Do NOT use any AI optimizing or changing mods without blacklisting this mod in the config.
Multiple horror mods AI break frequently with these types of changes, such as this one.
Read this before commenting:
I encountered alot of bugs playing the mod, can you fix them?
please clarify in the comments or issues, at the time i need
all the help i can to get the mod into a stable state.
Where's 1.20.1?
It'll come soon, 1.19.2 is the base version of this mod. ports may come later as
some code breaks when porting the mod to newer versions.
Why do all of his variants instakill?
Cause it's based off the original instakilling CANTBREATHE that alot of people liked,
so im trying to implement instakill into this mod where its as fair as instakill can be.
Fair as in it can be avoidable, the normal variant gives you 15 seconds to run
as far away as you can or set up anything that can help you avoid him,
and both of the silent variants are easily avoidable and counterable.
It's always configurable if you dont want to get instakilled.
Credits:
most of the "CANTBREATHE" sounds by - ClouddyVR
(Modified by - upsidedowntree)
**climbing ai by - brguiireal
ideas, playtesting, overall a HUGE help - VantablackDev
GO JOIN HIS SERVER!!! https://discord.gg/jCTQKYRcBA**
help with the silent cantbreathe stalker variant - Lunar
Project description from CurseForge.
Pick your setup
ASPHYXIATION by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
1.20.1
1 loader build1.19.2
1 loader buildCheck the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
ASPHYXIATION versions and loaders
Multiplayer Patch (1.1.1r, 1.19.2)
cantbreathe_asphyxiation-1.1.1r-1.19.2.jar
22 Feb 2026
Multiplayer Patch (1.1.1r, 1.20.1)
cantbreathe_asphyxiation-1.1.1r-1.20.1.jar
22 Feb 2026
AI Improvements & Multiplayer Fix (1.1.0r, 1.20.1)
cantbreathe_asphyxiation-1.1.0r-1.20.1.jar
20 Feb 2026
AI Improvements & Multiplayer Fix (1.1.0r, 1.19.2)
cantbreathe_asphyxiation-1.1.0r-1.19.2.jar
20 Feb 2026
Complete Overhaul (1.0.0r, 1.19.2)
cantbreathe_asphyxiation-1.0.0r-1.19.2.jar
20 May 2025
ASPHYXIATION 0.2.1b 1.19.2
asphyxiation-0.2.1b-forge-1.19.2.jar
30 Mar 2025
ASPHYXIATION 0.1.0b 1.19.2
asphyxiation-0.1.0b-forge-1.19.2.jar
18 Mar 2025
ASPHYXIATION 0.1.0b 1.20.1
asphyxiation-0.1.0b-forge-1.20.1.jar
18 Mar 2025
Looking for an older file? The official CurseForge project page is in Resources.