Isolated instances
Every setup keeps its own worlds, mods and config. Break one and the rest carry on happily.
遊ぶ · asobu · to play
Don't waste time during
Don't waste time during
asobu time.
The half hour you set aside to play should be spent playing. Asobu keeps every setup in its own box, fetches the right Java without asking, finds mods for you, and when something breaks it reads the log and tells you which mod did it.
Windows, about 65 MB. There is a portable build and every past version on the releases page.
Powerful underneath, simple on top
All the control you'd want from a power-user launcher, with none of it shoved in your face.
Java, handled
Asobu installs the exact runtime each Minecraft version asks for. Java 8 or Java 25, you'll never be asked which.
Mods, without the tab juggling
Search Modrinth and CurseForge together, filtered to the version you're on. Resource packs, shaders, data packs and worlds land in the right folder on their own.
Every loader
Fabric, Quilt, Forge and NeoForge, installed for you. Change an instance's loader later and Asobu offers to move your mods across.
Crashes, in words
When the game dies, Asobu reads the log, names the mod responsible, and offers the version that fixes it. You get a sentence instead of six hundred lines of Java.
Friends
Sign in with Microsoft and you're on the Asobu network. Add people by their Minecraft name and see who's around. Your Minecraft account is the only account there is.
Send someone your setup
Save an instance as a zip that Prism, MultiMC and the CurseForge app can open, or get an eight character code to send a friend. Codes last a week, and asking again for the same instance gives back the same one.
Straight from Mojang
Game files, libraries and assets download direct from official servers and are checksum-verified. Nothing is proxied through us.
Mods on a switch
See every jar with its name, author and size. Flip one off without renaming files by hand.
Updates itself, politely
New versions download quietly in the background, usually under a megabyte. Asobu waits for you to press restart, because nothing should close mid-download.
Portable mode
Drop a marker file next to the exe and the whole launcher lives on your USB stick instead of AppData.
How signing in works
Asobu never sees your password. You type it on Microsoft's own page, in your own browser.
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Asobu shows you a code It copies the code for you and opens Microsoft's sign-in page. Nothing is typed into Asobu.
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Microsoft vouches for you You enter the code on Microsoft's page and approve. Microsoft returns a token, which is exchanged with Xbox Live and then Minecraft services to confirm you own the game.
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The token is sealed on your machine Your refresh token is encrypted with Windows DPAPI under your user account, so another user on the same PC cannot read it and copying the file elsewhere gets them nothing.
One thing that surprises people: Microsoft's consent screen currently says "Minecraft Launcher", not Asobu. Mojang only lets approved applications sign people in, so until Asobu's own registration is approved it uses the official launcher's public app id, the same way other third-party launchers do.
No telemetry. Asobu has no analytics and nothing that reports back on how you use it. It does check GitHub for a new version when it starts, and it talks to the Asobu network if you use friends. Both are described on the privacy page.
Where it's at
Asobu is young and built in the open. What's here works: instances across the whole version range, all four mod loaders, mods and packs from Modrinth and CurseForge, crash reports it reads for you, a friends list, and an installer that keeps itself up to date.
Being built next is opening a singleplayer world to friends, where your PC stays the server and Asobu only introduces the two machines to each other. Your worlds never pass through us.
Expect rough edges. If you find one, the issue tracker is the fastest way to get it fixed.