Mushroom Launcher
https://github.com/shuabritze/mushroom-launcher/releases/latest
Client downloader & patcher.
- Full client download (from steam)
- Maple2.dll injection
- Xml.m2d & Server.m2d downloading
Note: the official download will only ever be via the github page. Do not download it from anywhere or anyone else.
55 Replies
@Snow

in light of recent events the launcher wars should have a ceasefire
Unknown User•14mo ago
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I am a peaceful man and accept, however my fellow comrades may not believe my communication.
Take for example Hiroo Onoda (Japanese: 小野田 寛郎, Hepburn: Onoda Hiroo, 19 March 1922 – 16 January 2014) was a Japanese second lieutenant in the Imperial Japanese Army during World War II. One of the last Japanese holdouts, he continued fighting for decades after the war's end in 1945.
For almost 29 years, Onoda carried out guerrilla warfare on Lubang Island in the Philippines, on several occasions engaging in shootouts with locals and the police. Onoda initially held out with three other soldiers: one surrendered in 1950, and two who were killed, one in 1954 and one in 1972. They did not believe flyers saying that the war was over. Onoda was contacted in 1974 by a Japanese explorer, but still refused to surrender until he was relieved of duty by his former commanding officer, Major Yoshimi Taniguchi. The officer was flown from Japan to Lubang for this.
Given your continued defiance, we are left with no alternative. On the 6th of August, 2025, we shall initiate the deployment of two highly advanced SHROOM-52 and SLIME-35 units to execute a precise strike upon two of your esteemed guild halls.
Should your forces fail to comply with our demands, you can expect an unparalleled assault from above—an aerial onslaught of devastation the likes of which has never before been witnessed on the North American server.
Our chief scientist, Dr. Shroomenheimer, has pioneered the creation of a meso explosion device of such unprecedented magnitude that it is capable of obliterating an entire raid party in a single, cataclysmic detonation. This weapon, unrivaled in its destructive potential, will ensure the utter annihilation of any who dare oppose us.
Unknown User•14mo ago
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1.1.6
- Fixed downloader completing early (file system writes take a while at the end, so it may get "stuck")
- Added a verification step if you re-download the client (note: this will replace modified XMLs, use at own risk)
- Increased chunk threading for more speed (hopefully no OOM errors)
Unknown User•14mo ago
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We force updates around here, MushStrike
Unknown User•14mo ago
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Who maximizes a game launcher
:weirdge:
Unknown User•14mo ago
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:Dentge:
@Sky brother what your launcher is doing

:mad:
IS THIS A TACTIC OF WAR?
tabified
Unknown User•10mo ago
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@Sky
%appdata%\Mushroom Launcher\logs
You can the file here to see if the download is failing cause of steam blocking youIf you need, you can download v1.0.5 https://github.com/shuabritze/mushroom-launcher/releases/tag/v1.0.5
It has a different version of the downloader which might work
GitHub
Release 1.0.5 - XML Patcher · shuabritze/mushroom-launcher
nene yay
note: the URLs may not work forever
1.2.0 - https://github.com/shuabritze/mushroom-launcher/releases/latest
- Upgraded the downloader to use the newest version of Steam depot downloader. This requires .NET 9.0 and will warn you if the install is not found.
- Added a checkbox to hide server IPs from displaying in the main list
- Sort the server list by last played
- Add a default icon to the server list (custom URLs soon)
Modloader
- Replaced Patch XML with new modloader system
- Each server can now load a unique list of mods
- Mods can be created by making a mod.json and passing in base64 encoded URLs or by placing the downloaded file in the mod folder. (For deeper paths, add more folders inside the mod folder)
- Mods currently do not merge (Two Xml.m2ds will collide), however there will be a priority system in the future to help mitigate
- There is a sample mod that includes the original Patch XML download
- Mods which use download links can have an update button that will fetch from the original URLs. Recommended to host on GitHub releases to allow for /latest/ URLs to work.
- Modloader is experimental and may wipe your data.
GitHub
Release v1.2.0 · shuabritze/mushroom-launcher
1.2.0
Upgraded the downloader to use the newest version of Steam depot downloader. This requires .NET 9.0 and will warn you if the install is not found.
Added a checkbox to hide server IPs from di...
:dead:
:HOLY:
@Sky do you reckon the background of the selected/not selected servers should be different :Fthink:

mods folder is sick :pogg:
wERE SO BACK
free mods
ayo it doesnt launch anymore
BAD UPDATE @Sky HALP
spinning wheel of death

same
:dead:
check log
oh i think ik why
probably stuck with perms issues again
move install folder or run as admin
running as admin doesnt change
:sadhamster:
:sadhamster:
reinstalled. no dice
are you sure running as admin didnt fix?
worked for me
ya i ran as admin
oh i think it just broke all my previously saved servers
o7
thanks obama
yeah if u reinstall it clears the entire folder for some reason
v1.2.1
- Moved config & mods to %APPDATA% to prevent overwriting when updating the app
- Added locale support (currently Grok translated, contributions welcome)
- Fixed launching failing when no mods selected
@tDcc rate the grok translations
im trusting elon musk
💀
let me look
no way out of all options out there u chose grok
I would only change
since corrigido means more like fixed
chatgpt is the worst
idk about deepL never used it
Unknown User•10mo ago
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@Sky get the new maple2.dll :catHeyHello:
wdym
:catHeyHello:
i made a PR to enable JS in the ingame browser
:catHeyHello:
gonna make me PR the two changes i made
:bladepup:
oh one sec
did you fix that translation i talked about?
no
im making a PR
:glorpsmash:
PR #1
:pogs:
cef hook works on x64 only?
yeah i only did x64
kk