Trust & security
Transparency with nothing hidden between you and the code
Source visibility, licensing, package integrity, and user control — what the project publishes openly, and what stays on you as the player.
License
GPL-3 in plain language
You may run, study, share, and modify Prism Launcher under the GNU General Public License version 3. Redistributed builds must preserve the same freedoms for downstream users.
The license covers the launcher software. Minecraft assets, Mojang services, and third-party mods keep their own terms — each in its own legal boundary.
Ethics
Project stance
Prism Launcher prioritizes user freedom and honest redistribution. It does not claim Mojang endorsement. Community packaging should state origin, version, and checksums clearly — no clutter, no misdirection.
Open source
Readable tree, buildable code
Review the repository layout before you trust a binary. Prefer release tags that match the version string on the download page — clean provenance, clean install.
├── launcher/
├── libraries/
├── cmake/
├── program_info/
└── LICENSE
Definitions
Trust grid
- Source
- Public repository under GPL-3 so skilled users can audit changes between releases.
- Builds
- Prefer official channel assets and published checksums over unknown mirrors.
- Warnings
- SmartScreen and antivirus heuristics measure reputation. They are signals, not final proof.
- Mods
- Third-party jars live outside the launcher license. Vet packs the same way you would any executable content — inside each instance boundary.
- Accounts
- Microsoft login flows talk to Mojang or Microsoft services. Prism stores session data locally per instance.
- Scope
- This community site documents Prism Launcher. It does not replace legal advice or platform policy docs.
Malware clarification
What a flag usually means
Game launchers often trigger heuristic engines because they download libraries, spawn Java, and write instance folders. A quarantine event after an official install is commonly a false positive — restore carefully and re-check hashes. See Guides for antivirus steps.
Your responsibility
What stays on you
- Comply with the Minecraft EULA and local law.
- Only install mods and packs you trust.
- Keep backups of worlds before large updates.
- Do not share account credentials in logs or screenshots.
Sponsors
Infrastructure thanks
These organizations have supported Prism Launcher infrastructure or tooling. Logos appear once here for credit.
Install from the official channel
Download 11.0.3, verify integrity notes, and keep every Minecraft setup in its own separated instance.
Go to download