/mmd/ - MikuMikuOnline 39chan Fork

Capture.PNG - 101.00 KB (1922x1118)

MikuMikuOnline 39chan Fork figamin ## Admin

Sat, Dec 20, 2025, 10:41 PM No.556

Hi /mmd/,
I've been working on a fork of the MikuMikuOnline source code over the past moth to not only translate the UI into English, but to also make it faster, more stable, and eventually adding more features. I have finished the first full release of the client which includes a new title screen, loading bars, English UI, and a redesigned chat UI.
If you want to test, you can find the source and releases here:
https://github.com/figamin/MikuMikuOnline_wss-mod
Note that you will need Visual Studio 2010 in order to compile the game. I have included all the needed libraries in the repo.

Mikudayo Sat, Dec 20, 2025, 11:50 PM No.557

works on my machine

Mikudayo Sun, Dec 21, 2025, 07:51 AM No.558

Does it need Windows to be set to Japanese locale?

Mikudayo Sun, Dec 21, 2025, 05:48 PM No.559

>>557
Works on ENG locale?

Mikudayo Sun, Dec 21, 2025, 06:10 PM No.560

>>559
Don't know. Mine is JP.

Mikudayo Mon, Dec 22, 2025, 03:08 PM No.561

spookyscary.PNG - 3008.79 KB (1922x1107)

testing without jp locale and it works, using locale remulator I get a ghost version of myself
it does crash on warp points after pressing M and if I change models too much

Mikudayo Mon, Dec 22, 2025, 03:15 PM No.562

>>561
Ghosts and the lag when somebody changes their model were a thing in the original version

figamin ## Admin

Mon, Dec 22, 2025, 04:26 PM No.563

>>558
>>559
>>560
This is being made with English locale in mind though it should function the same on Japanese. Haven't tested on any other locale
>>561
Did the crash happen on English or Japanese locale?
I have been manually switching my locale for testing but I can also try the emulators to see if they are breaking anything

Mikudayo Mon, Dec 22, 2025, 11:52 PM No.564

ClipboardI….png - 3.95 KB (446x106)

>>561
>it does crash on warp points after pressing M and if I change models too much
this also happens to me (using non-japanese WINE)
i tried launching in terminal with japanese locale to see if it would still happen, but it throws an error when trying to connect to the 39chan server

Mikudayo Fri, Dec 26, 2025, 10:49 PM No.594

Linux anons how did you solve the constant crashes + extremely laggy mouse controls?

Mikudayo Sat, Dec 27, 2025, 12:00 AM No.595

ClipboardI….png - 146.72 KB (1730x702)

>>594
Linux anon here. I did not experience input lag or crashes, so I guess I'll just explain my setup. I am using the fork, running through Lutris. The Lutris environment locale is set to Japanese (at the bottom of the system options). I am running it using Proton Experimental. I do not experience any crashes or lag, my only issue is my chat straight up doesn't work. I can see others' messages but my own do not send.

Mikudayo Sat, Dec 27, 2025, 01:38 AM No.596

g4h-bESXtr….mp4 - 6423.82 KB (1280x720)

>>595
For me it just crashes after a while plus the mouse camera is laggy compared to windows. Here's some footage of myself playing until it crashes.

Ignore the shitty resolution and Cibo Matto in the background.

Mikudayo Sun, Jan 11, 2026, 04:50 AM No.604

>>556
Game still crashes after a couple minutes on English locale (tested on fresh W10 install) and when warping to a new map outside Kerorin Town. When's the next update?.

figamin ## Admin

Sun, Jan 11, 2026, 11:18 PM No.605

>>604
Soon ish
I will have to do further testing to figure out why the crashes on EN locale are happening.

Mikudayo Fri, Feb 13, 2026, 12:44 PM No.629

Still being worked on?

Mikudayo Thu, May 21, 2026, 04:08 PM No.912

You should add images to the main menu screen

Mikudayo ## Mod

Thu, May 21, 2026, 04:09 PM No.913

>>912
We've considered it, but also we're not artists and we suck at using MMD. Feel free to leave your art in this thread though, as long as its MMO themed its allowed.

Mikudayo Sun, May 24, 2026, 02:44 AM No.915

>>913
Does it stricly have to be 3D art or can drawfriends contribute too?

Mikudayo Sun, May 24, 2026, 02:58 AM No.916

Is it confirmed that the latest fork of this no longer crashes on EN locale?

Mikudayo ## Mod

Sun, May 24, 2026, 02:34 PM No.917

>>915
2D allowed!

Mikudayo Thu, May 28, 2026, 07:51 AM No.918

You should add new plugins to the fork

Name
Options	Fortune Sage Nonoko
Comment	Max comment length: 0/4096 Poll duration:
Emotes	Show Emotes
Select	File / Embed / Poll / Tegaki
File	Drag files here to upload or click here to select them, or paste an image
Captcha	Verified — you can post. Name the character shown in the picture. Loading image…
Password	(for deletion)
Please read the Rules and FAQ before posting. Supported file types are: GIF, JPG, OGG, MP3, MP4, PNG, SWF, WEBM, WEBP. Supported embeds are: YouTube, Nicovideo, Twitter/X, Bluesky, BiliBili, Vocaroo. Maximum file size allowed is 20MB. Images greater than 250x250 pixels will be thumbnailed.