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Prism Launcher
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Minecraft 1.20.1 with Vanilla

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Entityprism launcher 1.20.1 vanilla1.20.1 vanillaprism launcher

Create a Prism instance for Minecraft 1.20.1 on Vanilla. Use Java 17.

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Minecraft
1.20.1
Loader
Vanilla
Java
Java 17

1.20.1 + Vanilla

Add Instance → 1.20.1 → install Vanilla. Assign Java 17 under Settings → Java.

This pairing existed for that version. Older versions are not given NeoForge or Quilt pages.

Installer: /download.

Prism Launcher screenshot showing the instance management user-interface
Each instance has its own version, mods, settings and worlds.

Frequently asked questions

Which Java for 1.20.1?

Java 17. Mismatch is a common exit code 1.

Get Prism Launcher

Windows, macOS & Linux

Free and open source. Sign in with the Microsoft account that owns Minecraft, then create your first instance.

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Prism Launcher on Windows showing several modpacks and instances