Publishing Guide
How to create and publish your Minecraft game on McBlox
đĻ Modpack Structure
Your modpack must be a .zip file with a specific structure. Inside the zip, there should be one folder (name doesn't matter) containing your instance files:
âââ đ yourmodpack/
âââ đ mods/ â your mod JARs
âââ đ config/ â mod configs
âââ đ resourcepacks/ â optional resource packs
âââ đ shaderpacks/ â optional shaders
âââ đ saves/ â world saves (for world-type games)
âââ options.txt â optional MC settings
Think of it like zipping up your .minecraft folder contents â just the mods, config, saves, etc. Don't include the Minecraft JAR, libraries, or Java. McBlox handles all of that automatically.
Here's what it looks like in practice:
| đ .. | File folder | |||
| đ rainmire | 1,346,459,926 | 802,116,860 | File folder | 18/02/2026 |
| đ .. | File folder | |||
| đ saves | 816,466,362 | 300,591,146 | File folder | 18/02/2026 |
| đ resourcepacks | 201,375,299 | 189,302,075 | File folder | 18/02/2026 |
| đ mods | 257,911,437 | 244,212,341 | File folder | 18/02/2026 |
| đ config | 70,699,116 | 68,009,008 | File folder | 18/02/2026 |
| đ options.txt | 7,712 | 2,290 | Text Document | 17/02/2026 |
Common mistakes: Don't put files directly in the zip root (must be inside one folder). Don't include the versions/, libraries/, or assets/ folders â McBlox downloads those automatically.
âī¸ Hosting Your Modpack
Upload your modpack zip to one of these supported file hosts. Then paste the share/download link into the publish form.
Google Drive
- Upload your .zip to Google Drive
- Right-click â Share â set to "Anyone with the link"
- Copy the share link (looks like
https://drive.google.com/file/d/...) - Paste it in the Modpack Download Link field
MediaFire
- Upload your .zip to MediaFire
- Copy the file page link (looks like
https://www.mediafire.com/file/...) - Paste it in the Modpack Download Link field
Dropbox
- Upload your .zip to Dropbox
- Click Share â Copy link
- The link will look like
https://www.dropbox.com/scl/fi/.../...?dl=0 - Paste it as-is â McBlox converts it to a direct download automatically
CurseForge & Modrinth: Download resolution for these platforms is temporarily broken due to API changes. Please use Google Drive, MediaFire, or Dropbox instead. We're working on fixing it.
đ How to Publish
Create your modpack zip following the structure above. Include your mods, configs, resource packs, and optionally saves/options.txt.
Upload it to Google Drive, MediaFire, or Dropbox. Make sure the link is publicly accessible.
Sign in to McBlox on the website and go to the Publish page.
Fill out the form:
- Title & Description â name your game and describe it
- Tags â select up to 5 tags (RPG, PvP, Adventure, etc.)
- Modpack URL â paste your upload link
- Minecraft Version â the MC version your mods target
- Mod Loader & Version â Fabric, Forge, or NeoForge + specific version
- Game Type â Server (multiplayer) or World (singleplayer)
- Server Address (if server type) â your server IP
- Thumbnail â 16:9 image, drag to position
Submit for review. Your game will be reviewed by the McBlox team and approved within 24 hours.
That's it! Once approved, your game appears in the launcher for everyone to play. Track plays and ratings from your Dashboard.
Tip: Enable Auto-Join for server games â it will automatically connect players to your server when they launch, and replace the Disconnect button with an Exit button. The McBlox mod is injected into the modpack automatically.
â FAQ
What mod loaders are supported?
Fabric, Forge, and NeoForge. McBlox downloads and installs the loader automatically â you just need to include the mods that match it.
Can I update my modpack after publishing?
Yes! Go to your Dashboard, click Edit on your game, and update the modpack URL. Players will re-download the modpack on their next launch (clear cache from launcher settings if needed).
How big can my modpack be?
There's no hard limit from McBlox â it depends on your file host. Google Drive has a 5 TB limit, MediaFire 10 GB free, Dropbox 2 GB free. Most modpacks are 200MB-1GB.
Do I need to include Java?
No. McBlox downloads and manages Java automatically for each Minecraft version.
Can I include world saves?
Yes! Put them in a saves/ folder inside your modpack. Great for adventure maps and singleplayer games. Set game type to "World" and enter the world folder name.