Frequently asked questions

LuniVex is an independent Minecraft launcher forked from Modrinth's open-source Theseus launcher. The telemetry is stripped, the UI is rebranded, and it's built as a personal-first launcher with no corporate owner.

Yes and it stays free. There's a Ko-fi page if you want to support development, but nothing in the launcher is paywalled.

Aevr handles development, design, and direction. Arqe handles macOS builds. It's a small independent project.

Modrinth was acquired by Spark Universe in early 2026. LuniVex was already in development before that happened - the acquisition made the independence angle more relevant, not the reason we started.

No. The original Theseus launcher had PostHog, Sentry, and Intercom. All three are gone. You can verify by reading the source on GitHub.

The source code is public. Read exactly what it does before running it. Mods come from Modrinth which does its own vetting.

Modrinth's API for browsing and installing mods, and Mojang's auth servers to sign in with your Minecraft account. Nothing else.

Not at launch. Minimal, non-intrusive ads may be added later to help fund development. If it happens it will be disclosed here first - and it will never be anything like Feather Client's approach.

It's in active testing. Join the Discord to get notified when it drops.

Arqe is building it from scratch to match the Windows UI. Coming after Windows.

Planned, but no timeline yet. Windows and macOS come first.

The same versions Theseus supports - vanilla, Fabric, Quilt, and Forge. Specific version support will be confirmed with the first public build.

The launcher is built on Modrinth's Theseus which is GPLv3. LuniVex inherits that license, meaning the source is public and you can fork it.

The repo is on GitHub. Issues and PRs are open. For art, building, or platform testing reach out on Discord. Contributors get credited on the Team page.

It means if LuniVex ever goes somewhere you don't like, the community can legally fork it and keep going. The license is the structural guarantee, not a promise from us.