Minimum Runs
- OS
- Windows 10, macOS 12, Linux (64-bit)
- CPU
- Intel Core i3-3210 or AMD A8-7600
- RAM
- 4 GB system memory
- GPU
- Intel HD 4000 or Radeon R5 series
- Storage
- 1 GB for Minecraft, about 4 MB for e4mc
- Internet
- Stable broadband, 2 Mbps upload
Install E4MC Mod
Step-by-step setup for E4MC Mod on every platform, from choosing a loader to sharing your first domain.
Installation Guide
Pick your platform. The steps are nearly identical everywhere because e4mc runs inside Minecraft: Java Edition.
- Install a loaderRun the Fabric, Quilt, Forge or NeoForge installer for your game version.
- Open the mods folderPress Win + R, type %appdata%\.minecraft\mods and press Enter. Create the folder if it does not exist.
- Add the jarCopy the e4mc file that matches your loader into the mods folder.
- Launch and testStart the loader profile, open a world, press Esc and click Open to LAN.
- Install a loaderRun the loader installer. If macOS blocks it, right-click the file and choose Open.
- Open the mods folderIn Finder press Cmd + Shift + G and go to ~/Library/Application Support/minecraft/mods.
- Add the jarDrag the matching e4mc jar into the folder.
- Launch and testStart the loader profile and open a world to LAN.
- Install a loaderRun the loader installer with the Java runtime bundled with your launcher.
- Open the mods folderGo to ~/.minecraft/mods, or your Flatpak or Prism instance folder.
- Add the jarCopy the matching e4mc jar into the folder.
- Launch and testStart the profile, open a world and choose Open to LAN.
- Use a Java launcherInstall a Java Edition launcher for Android such as PojavLauncher and sign in with your Microsoft account.
- Create a modded profileInstall Fabric or another loader from the launcher's profile menu.
- Add the jarUse the launcher's mods manager to add the e4mc file.
- Host a worldOpen a world to LAN and share the domain from chat.
- Use a Java launcheriOS needs a sideloaded Java Edition launcher such as Amethyst, with JIT enabled.
- Create a modded profileSet up a Fabric profile for your game version.
- Add the jarImport the e4mc jar through the Files app into the profile's mods folder.
- Host a worldOpen to LAN and share the domain. Expect lower performance than on a PC.
E4MC Mod is for Java Edition only. It does not work with Bedrock, Pocket Edition or console versions of Minecraft.
System Requirements
E4MC Mod adds almost nothing on top of Minecraft itself. The host's upload speed matters more than raw hardware.
Recommended Smooth
- OS
- Windows 11, macOS 14, recent Linux
- CPU
- Intel Core i5-4690 or AMD Ryzen 5 1600
- RAM
- 8 GB or more, 16 GB for modpacks
- GPU
- GeForce GTX 1050 or Radeon RX 560
- Storage
- SSD with 4 GB free
- Internet
- Wired, 10 Mbps upload or better
Hosting four or more players, or a heavy modpack? Give Minecraft more memory in your launcher and host from the strongest computer in your group.
Troubleshooting
The six problems players report most, and the fix that solves each one.
Only the local port shows in chat
Fix: The mod did not load. Confirm the jar matches your loader and game version and sits in the right instance.
Friends cannot find the server
Fix: The domain was mistyped. Copy it by clicking the chat message and paste it exactly.
Version mismatch on join
Fix: Everyone must run the same Minecraft version as the host.
Failed to log in when joining
Fix: Restart the launcher and sign in again on both the host and guest.
Players drop mid-session
Fix: Lower simulation distance, use a wired connection and close uploads on the host.
Missing mods listed on disconnect
Fix: Share an exported pack so friends run identical content mods.
Known Issues
Minimap mods may treat each new domain as a new server, so waypoints can reset between sessions. Some school and office networks block the outbound tunnel. Worlds close for everyone when the host exits.
Performance Tips
Allocate more RAM for big packs, add a performance mod such as Sodium on Fabric, keep render distance moderate, and restart the world if a session has run for many hours. More fixes are in our troubleshooting article.
Ready to Host Tonight?
Download the official jar, open to LAN and send one link.