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CAST.

CastLauncher

A free launcher that installs modpacks, mods and the right Java for you. Pick a modpack, hit Play. That's it.

Download for free

Windows, macOS and Linux

Cast Launcher: a list of installed modpacks with Play buttons

Everything you need to just play

Thousands of modpacks, one click

Browse Modrinth and CurseForge right in the launcher. Found one you like? Hit Install and it grabs the mods, configs and everything else.

Modpack search in Cast Launcher: modpack cards with an Install button

Every modpack stays separate

Vanilla, Forge, Fabric or NeoForge: each one keeps its own mods, worlds and settings. Nothing gets mixed up or breaks something else.

The library: modpack cards with game versions and a Play button

Microsoft or offline

Sign in with your Microsoft account or play with an offline one. Add a few and switch in a second.

Account settings: a Microsoft account and an offline account

  • No Java setup

    The launcher finds or downloads the right version.

  • Move from other launchers

    Bring your Prism Launcher and Modrinth App modpacks without redownloading.

  • Skins in 3D

    Change your skin and see how it looks right away.

  • Updates itself

    New launcher versions install on startup.

Download Cast Launcher

Free, no sign-up, no ads.

macOS

macOS 10.15 or newer

Download · 27 MB

The first time, open the launcher with right-click → “Open”.

What's new in 1.6.0All versions

FAQ

Yes, completely. No subscriptions, ads or paid features.

You can sign in with a Microsoft account or add an offline one. Changing your skin from the launcher only works with a Microsoft account.

Any version from Mojang's official list, including Forge, Fabric and NeoForge. Very old versions can be moody sometimes. We're on it.

If it's Prism Launcher or the Modrinth App, move them over in the launcher settings. No need to download the game again.

That happens to apps without a paid code signature. Click “More info” → “Run anyway”. The launcher's code is open, anyone can check it.

Write on Telegram or GitHub. The launcher has an error log: copy the details from there and attach them.