Set it up once.
Then start playing.
Download Server Atlas for Horizon, Fabric or Forge. Minecraft Java 26.3, public server discovery, filters and favorites. Free and open source.
Fabric and Forge installation
Minecraft 26.3 · Java 25. Use a separate instance for each loader.
- Install Fabric Loader 0.20.1+ or Minecraft Forge 66.1.5+ for Minecraft 26.3.
- Download the matching Server Atlas JAR and place it in that instance’s mods folder. Remove older Server Browser JARs there.
- Start Minecraft and open Multiplayer. The browser opens automatically; Classic returns to the original screen.
mods
Public beta: 96 automated checks passed per loader. Some installation and gameplay combinations remain unverified.
Horizon · 2.2.1
Download the mod
Get server-browser-2.2.1.hnmod. It contains the native Rust implementation for Horizon, rather than a Fabric or Forge .jar.
Choose the correct instance
Open that instance's game folder and put the file in horizon-native-mods. Keep an older Server Atlas package backed up outside this folder.
horizon-native-mods
Enable and build the mod
On the launcher's Mods page, switch server_browser 2.2.1 on. Choose the ordinary Build action for the tested revision and review the mod list. The player decides whether to accept “I trust these mods: build”.
Launch the completed build
Wait for the build to finish, close the older client and start this exact instance. Open Multiplayer. A mod update requires a new native build; normal launches reuse it.
“No native mod is enabled”
An installed file may still be switched off. Turn on server_browser in the selected instance's Mods page.
“Installed, not built into this game”
The running client was built without this version. Finish the native build and restart the resulting instance.
An incompatible revision or E_INVALID_HELPER
Use the ordinary Build action with the package's exact pins. The separate latest-Nightly rebuild can override them. Other mods may require different revisions; test this mod alone first.
A good server.
And a new adventure.
Discover new worlds. Keep your favorite servers. Start your next adventure with Server Atlas.