grubielauncher.com
Grubie Launcher
A desktop Minecraft launcher for Windows, macOS and Linux. It installs game versions and mod loaders, downloads the matching Java itself, and keeps every instance — mods, worlds, configs, launch settings — in one place. Two things set it apart from a plain launcher: when the game crashes it reads the report and tells you what broke, and your friends live in the same window — chat, voice, and joining each other’s worlds without port forwarding or a rented server.
The interface is a permanent sidebar with full screens instead of stacked dialogs. Ctrl+K opens a command palette that reaches any instance, screen or setting, Ctrl+I opens the assistant, and Alt+← / Alt+→ walk the history like a browser.
Screenshots
The library, and the instance you played last
Mods, resource packs and shaders, searched inside the launcher
An assistant that reads your instances, logs and crashes
Friends, groups and requests, next to the chat
Features
Play
- Official Minecraft versions: releases, snapshots and old alpha/beta builds.
- Mod loaders: Forge, NeoForge, Fabric, Quilt.
- Old versions too: Legacy Fabric, Babric, Ornithe, Better than Adventure with Babric, ReIndev with FoxLoader, and jar mods.
- Java is downloaded automatically and matched to the game version.
- Accounts: Microsoft, Ely.by, Discord and offline. Several at once, switched from the sidebar.
- Instance library with list and grid views, groups, tags and notes.
- Continue where you left off: launch straight into a world or onto a server from the instance screen.
- Server catalog from Modrinth: find a server that fits your instance, or create an instance for any server in it.
- Memory, JVM flags and process priority are set globally and can be overridden per instance.
- A desktop shortcut can be created for a single instance.
Instances
- Mods, resource packs, shaders and datapacks from CurseForge and Modrinth, searched and installed inside the launcher.
- Update check that shows a diff first: what gets added, updated and removed.
- Import from a file: Grubie, CurseForge, Modrinth (
.mrpack), Prism and MultiMC packs — drag the archive onto the window.
- Export an instance to an archive; the copy carries mods, configs and worlds.
- Publish an instance and share the code: everyone who installed it sees your next update, with a diff of what changes, and syncs it in one click.
- An instance installed from a CurseForge or Modrinth modpack stays linked to it: update to a newer version with a preview of what changes, and return the previous one if something breaks.
- Move an instance to another Minecraft version or loader: the launcher makes a copy with matching mod versions and can bring settings, mod configs and worlds along.
- Mod sets: save the mods of an instance as a set, then add it to any instance or pick it when creating a new one.
- Your own mod groups: collapse them and turn a whole group on or off at once.
- Community catalog of public instances, both inside the launcher and on grubielauncher.com/packs.
- Integrity check that re-downloads damaged or missing files.
- Config editor with search, completion and saved versions to roll back to.
- Chunk editor for worlds: a map of every generated chunk per dimension with a satellite view of the terrain, filters for never-visited, outdated or damaged chunks, and deletion with a safety backup taken first.
Together
- Friends, friend requests, direct messages and group chats.
- Voice: rooms inside groups and one-to-one calls, push-to-talk, noise suppression, per-participant volume.
- Play together — open the world you are in to friends or to everyone, over the internet, without port forwarding.
- Join a friend’s world in one click: the launcher installs and syncs their instance, then connects you.
- Game invites; Telegram notifications reach you while the launcher is closed.
- Discord Rich Presence with the instance you are playing.
- Profile with achievements, statistics and a leaderboard. Achievements count on a friend’s shared world too.
- Skins and capes: your own wardrobe, import by file, link or nickname, plus a community catalog you can publish to.
When something goes wrong
- Crash card: the launcher reads the crash report, names the likely culprit and what to do about it. The rules come from the server, so they improve without a launcher update.
- AI crash analysis for crashes the rules do not recognise — opt-in, and the log is stripped of paths, nicknames and tokens before it is sent.
- Run history: every launch with its log, search, exit code, and a one-click report to paste when asking for help.
- World backups: automatic after a session and manual, with a safety copy taken before any restore.
- Connection test against the launcher’s own services and the official Minecraft, CurseForge and Modrinth endpoints — useful when a provider blocks something.
- Task center: installs and updates with progress, per-file errors and retry.
- Downloads can go through the Grubie mirror and fall back to the official source on their own.
Assistant
- Runs on your provider and your key: any OpenAI-compatible endpoint, OpenRouter by default. The key stays on your machine.
- Reads what it needs to answer: instances, installed mods, logs, the last crash, worlds, accounts, disk usage, system information.
- Acts on your behalf: creates instances, installs, updates, disables and removes mods, changes memory and launch arguments, backs up and restores worlds, picks a skin, launches the game.
- Asks before it changes anything, and asks again every time for deletions — no matter what you allowed earlier.
- Chat history syncs to your Grubie account; the sync can be turned off in the settings.
Your own server
- Create a server next to an instance: Vanilla, Spigot, Bukkit, Paper, Purpur, Forge, NeoForge, Fabric, Quilt.
- Console,
server.properties editor, and the server picks up the mods and configs of the instance it belongs to.
Installation
- Download the latest build from Releases.
- Windows — run the
-setup.exe installer. macOS (12 or later) — open the .dmg for your Mac (arm64 for Apple Silicon, x64 for Intel) and drag the app to Applications. Linux — run the .AppImage, or install the .deb.
- Sign in with an account, or create an offline one, and pick a version.
The launcher updates itself; new versions arrive without a re-install.
License
GPL-3.0 — see LICENSE.
The name Grubie Launcher and the logo are not covered by this license. Forks are welcome, but they need their own name and logo and must not present themselves as the official launcher.
Links
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