do_not_join.jar
ModSome mysterious entities like player79 spawns in your world and jumpscare you.
Why gradeC
How grades workStrengths
Points lost
- No source code link−7 points
- No public issue tracker−3 points
- First release only 7 months ago−3 points
- Releases in only 7 of the last 24 months−1 point
- Under 5 million downloads−1 point
All 11 criteria
Maintenance
1 point lost26 / 27Last releaseHow long ago the newest file came out, or an existing file was marked as working on a new Minecraft version.5 days ago (19 Oct 2026) 12 / 12Supports popular versionsWhether the project has a file for a Minecraft version that 15% or more of the popular mods updated in the last 6 months also support. A version many modpacks use, like 1.20.1 or 1.21.1, also counts after a release in the last 12 months.1.20.1 on Forge. 77% of the 516 popular Forge mods updated in the last 6 months also have files for 1.20.1. Latest Minecraft: 26.3. 9 / 9Regular releasesIn how many of the last 24 months a new file came out. Full points at 8 months.Releases in 7 of the last 24 months 5 / 6Stability
Full points22 / 22Removed from modpacksHow many modpacks removed it in a later version of the pack. We can only see this in modpacks with two or more versions. A pack that swaps it for another edition of the same project, or that is rebuilt from scratch, does not count.2 of the 4 modpacks with two or more versions removed it in a later one (50%) 10 / 10Quick fixesHow often a release needed a quick fix: a new release within 3 days to fix a problem in it.2 of its 21 releases in 2 years needed a quick fix (10%) 7 / 7Known conflictsHow many projects say they do not work with it, compared with how widely it is used. Packs, small projects, forks, ports, add-ons, alternatives and old versions do not count.None 5 / 5Transparency
10 points lost0 / 10Source codeWhether the project page links to its source code, so anyone can read what it does.No link on the project page 0 / 7Place to report problemsWhether the project page links to a place where players can report problems: an issue tracker.No link to report problems 0 / 3Popularity
1 point lost3 / 4DownloadsDownloads on Modrinth and CurseForge. Full points from 5 million.21,359 3 / 4Track record
3 points lost5 / 8AgeHow long the project has existed. It counts less when no new file came out recently.7 months, 20 releases 5 / 8Security
PassedFile checksThis check adds no points. It can only take points away.Our checks found nothing harmful in both latest files for recent Minecraft versions. See Security
55.7 of the 71 points that apply = 78 out of 100. The points above are rounded to whole numbers.
Images
About
do_not_join.jar is a psychological horror mod that brings unsettling entities and escalating disturbances into your world, aiming to build paranoia and tension rather than focus on ordinary combat. Its central threat is player79, a powerful shapeshifting presence that appears to scare and toy with you, alters your world, and grows stronger as it consumes the life around it; the mod warns that you have 30 days before it consumes your world. Other entities behave differently: some watch from the fog, some silently follow or relentlessly chase you, and some flee, with named creations including Stone Stalker, The Fleshed, Snow Soul, and a Huge Entity. Encounters can include distant footsteps, breathing, unnatural sounds, jumpscares, and teleportation, while the mod also interferes with your coordinates, HUD, and skin and displays on-screen pop-ups. The experience includes flashing lights, rapid screen effects, and loud noises, so it is designed as an intense horror experience rather than a conventional combat-focused mod.
Written from Modrinth and CurseForge . How we write it
In-game changes
Changes the game's code in 8 areas: User interfaceChanges 6 game code files in this area: menus, screens, tooltips, the chat window and the in-game overlay., Rendering and graphicsChanges 3 game code files in this area: drawing mobs, items, particles and textures on screen., Networking and multiplayerChanges 2 game code files in this area: connections, the server list and what is sent between your game and a server., Mobs and their behaviorChanges 2 game code files in this area: mobs, animals, villagers, projectiles and how they move and act., World renderingChanges 1 game code file in this area: drawing the terrain, sky, clouds and weather., PlayerChanges 1 game code file in this area: your character: movement, abilities, hunger and controls., Game coreChanges 1 game code file in this area: the main loop, lighting and other code the whole game uses. and Server and world logicChanges 1 game code file in this area: the world, commands, scoreboards, saved data and game rules..
Adds 97 blocks, 56 items, 60 entities, 44 biomes, 45 dimensions, 1 structure, 7 recipes, 1 loot table, 99 sounds and 2 key bindings.
Counted from the names and data files in the mod, so the list may not be complete.
Replaces 952 of vanilla Minecraft's block textures, 536 item textures, 447 mob and entity textures, 62 world generation files, 50 interface textures, 4 sky, weather and particle textures, 2 models, 1 core shader and 1 text file.
Details
- Creators
- vw66, MrGibbo, Tavrix12, aradia1233 and haasondiscord
- License
- All rights reserved
- Downloads
- 21K
- Created
- 13 Mar 2026
- Official pages
- Modrinth , CurseForge
- Links
- Discord
- Removed from CurseForge
- 18 Oct 2026
Security
No harmful code found
We checked its files without running them.
What it can do on your computer
- Starts other programs
- It can start another program on your computer. Only in its files for Forge 1.20.1.
- Creates settings files
- The mod keeps its settings in the config folder of your game, where you can change or delete them. 5 files in your config folder.
- Connects to the internet
- It has code that can go online, for example to check for updates, load skins or send crash reports. Found in 3 packed files the mod does not list. See Privacy
Why we show this: a mod runs on your computer like any program, so harmful code in it can take your accounts or files. Our checks look for known signs of harm. They cannot prove that a file is harmless. In the grade: malware means no grade, and a Warning in a latest file for a recent Minecraft version lowers it.
How we checked
- FilesWe download the files from Modrinth or CurseForge and look at what is inside them and what their code can do, without running them. Fixed rules tell what is harmful.2 latest files: the newest file for each Minecraft version and loader. Both are for recent versions. Recent versions: those released in the last 2 years, plus 1.20.1 and 1.21.1, among the most played in modpacks. See each file in Releases
- Their codeWe turn the code of the files back into readable code and follow what it does, without running it. This shows what it downloads, what it sends and where your login goes.Read in 1 of 2 files, without running it
- Author on ModrinthThe disclosure form on Modrinth, where the author declares that the project reads or edits things on your system outside the game. Since 13 Aug 2026, Modrinth's rules require it when this applies.Nothing declared about your system outside the game.
- Connects to the internet
copy.sh - Looked for, not foundWe looked for these in the file and did not find them.Folders outside the game, updating itself, the webcam or microphone, an AI service.
Privacy
We found nothing it sends about you, in the 1 of its 2 files we read
We read its code without running it: it contacts 1 web address while you play.
Like any connection, each address it contacts sees your IP address.
Why we show this: a mod can send things about you over the internet, like your player name or your login. Contacting an address to check for updates or download files sends nothing about you. Not in the grade: sending data can be normal for what a mod does.
How we checked
- Files readWe read the code without running it. We list each web address the code contacts while you play, and what it sends. Code that is never used is left out.The code of 1 of 2 files, for recent Minecraft versions. See each file in Releases
- sessionserver.mojang.comTalks to the Minecraft login service.
- Author on ModrinthThe disclosure form on Modrinth, where the author declares crash reports, usage data and advertisements. Since 13 Aug 2026, Modrinth's rules require it when a project collects data on its users or shows advertisements.Nothing declared about crash reports, usage data or advertisements.
AI
No sign that AI was used to make it
We looked for AI tools in its texts, files, images and sounds and found none.
No sign of AI in the game
We found no AI service, AI library or AI model file in its code.
Why we show this: some players and servers avoid projects made with AI, and AI in the game can send what you write to an online service. Not in the grade: using AI does not tell whether a project works well or is kept up to date.
How we checked
- Author on ModrinthThe disclosure form on Modrinth. Since 13 Aug 2026, Modrinth's rules require it when a substantial part of the code is AI output, when an asset is mainly AI output, or when the project or its page relies on generative AI.No AI content or AI features declared.
- Description and changelogsThe description, project page and newest changelogs: sentences saying an AI tool was used, and text pasted from an AI chat.Nothing found8 of 35 changelogs read
- Its filesFiles that AI coding tools leave behind (like AGENTS.md), and the texts inside the files you download.Nothing found
- Images in its filesHidden data in the images of the files you download, where AI image tools write their name and settings.Nothing found2,799 images read
- Sounds in its filesThe tags of the sound files in the files you download, where some AI music tools write their name.Nothing found40 of 382 sounds read
- Code of the modThe code and files of the mod, read without running it: addresses of AI services, AI libraries, AI model files and a place for your own AI key.No AI service, AI library or AI model file799 code files read
Compatibility
See all 20 filesPoint at or tap a version to see its loaders.
Modpacks using this project
Find modpacks with itModpacks that include do_not_join.jar in at least one of their versions, most downloaded first.
Twixxel Stalkers + More11K downloadslast version with it 8 Jul 2026
Residual Presence - A True Psychological Horror Experience770 downloadslast version with it 19 Jul 2026
Odd_Dream301 downloadslast version with it 8 Aug 2026
An0maly Alph4283 downloadslast version with it 25 Aug 2026
do_not_join.jar180 downloadslast version with it 21 Aug 2026
a world forgotten by god48 downloadslast version with it 11 Oct 2026Latest files
The newest file for each Minecraft version and loader. The files for recent versions come first. Recent versions: those released in the last 2 years, plus 1.20.1 and 1.21.1, among the most played in modpacks.
20 releases
Quick fixes
In the last 2 years, 2 releases needed a quick fix: a new release within 3 days to fix a problem. This counts in the grade, but it is too few to lose points.
See them, newest first
Quick fixesReleases followed within 3 days by a new release that fixes a problem in them.2
- 5.3Fixed Python Bug!
- do_not_join-3.4.2.jar