The Modrinth App manages instances and mods for you. LeiCraftClient is on Modrinth, so the app can install it and offer its dependencies in one go.
What you need
- The Modrinth App from https://modrinth.com/app, signed in with your Minecraft account.
- Nothing else to download: the app gets LeiCraftClient, Fabric API and Fabric Language Kotlin from Modrinth for you.
Install
Create a new instance
- Click Create new instance in the sidebar. On the Library page you can also click New instance.
- A Create instance window opens. Choose Custom setup.
Set up Fabric for 26.3
Fill in the fields:
- Name: anything you like, for example
LeiCraft 26.3. - Loader: Fabric.
- Game version: 26.3.
- Loader version: Stable.
Then click Create instance. The app downloads Minecraft and Fabric in the background.
Add LeiCraftClient
Open your new instance and go to the Content tab. You can add LeiCraftClient in two ways:
- Click Browse content.
- Search for
LeiCraftClient. - Click Install next to LeiCraftClient.
- The app offers the mods that LeiCraftClient needs. Install them too, so you get Fabric API and Fabric Language Kotlin.
This is the easiest way, and the app can also update the mods later.
- Download the LeiCraftClient jar from the download page.
- On the Content tab, click Upload files and choose the jar. You can also drag the jar onto the window.
- The app shows an Unknown file warning because the file doesn't come from Modrinth. That is expected for the jar from our website. Click Install anyway to confirm.
- Click Browse content and install Fabric API and Fabric Language Kotlin as well.
Check the content list
The Content tab should now list three mods: LeiCraftClient, Fabric API and Fabric Language Kotlin. If one of them is missing, add it with Browse content.
Start the game
Start the instance. Look for the LeiCraftClient button on the title screen, below the Realms button. If you see it, LeiCraftClient is installed.
Next: link your account
You can already see other players' capes and cosmetics. To wear your own, link your Minecraft account: Link your account.
Troubleshooting
- The game stops with an error about missing or incompatible mods. The error names the missing mod. Most often it is Fabric Language Kotlin or Fabric API. Add it on the Content tab with Browse content.
- LeiCraftClient doesn't show up in the search. Check that the instance uses Fabric (or Quilt) and game version 26.3. You can also open the mod page directly: https://modrinth.com/mod/leicraftclient.
- The jar from the website shows a warning. That is normal for files that don't come from Modrinth. Only install jars you downloaded from the download page.
More help: Troubleshooting.