Trust chamber
Transparency you can walk through
License, public code, download integrity, and the line between what the project guarantees and what stays on you as the player.
License
GPL-3 in everyday terms
You may run, study, share, and modify Prism Launcher under GNU GPL version 3. If you redistribute a modified build, downstream users keep the same freedoms — that is the core of the license.
GPL-3 covers the launcher itself. Minecraft assets, Mojang online services, and third-party mods each follow their own contracts.
Ethics
Community packaging standards
Prism Launcher champions user freedom and honest redistribution. It does not imply Mojang endorsement. Mirrors and repackagers should label origin, version, and checksums clearly — no bait-and-switch installers.
Open source
Follow the repository before you run a binary
Walk the source tree, read recent commits, and match release tags to the version string on the download page. Auditing code beats guessing from a filename alone.
├── launcher/
├── libraries/
├── cmake/
├── program_info/
└── LICENSE
Definitions
Integrity map
- Source
- Public GPL-3 repository — skilled readers can diff releases instead of trusting marketing copy.
- Builds
- Prefer artifacts from this site or the official release channel; compare published SHA-256 notes before you install.
- Warnings
- SmartScreen and antivirus heuristics track reputation, not intent. Treat alerts as prompts to verify, not as verdicts.
- Mods
- Jars and packs you add live outside the launcher license. Vet them like any code that runs on your machine.
- Accounts
- Microsoft login flows reach Mojang or Microsoft servers. Prism caches session data locally for instance launches.
- Scope
- This cavern site documents Prism Launcher for players. It is not legal counsel or a substitute for platform policy pages.
Malware clarification
Why scanners sometimes bark
Launchers download libraries, spawn Java, and write instance folders — behavior that heuristic engines flag. A quarantine after a verified 11.0.3 install is often a false positive, but restore deliberately and re-check hashes. Guides covers allowlisting steps.
Your responsibility
What the project cannot decide for you
- Follow the Minecraft EULA and laws where you play.
- Install only mods and packs from sources you have vetted.
- Back up worlds before major loader or pack updates.
- Keep account tokens out of public logs and screenshots.
Sponsors
Infrastructure thanks
These partners have backed Prism Launcher tooling, translation, or build farms. Logos appear once here as credit — not as product endorsements of this site.
Fetch 11.0.3 from the official pool
Download from the release page, verify integrity notes, and keep each instance walled off in its own alcove.
Go to download