Frequently asked questions

LuniVex is an independent Minecraft launcher forked from Modrinth's open-source Theseus launcher. Telemetry stripped, UI rebranded, no corporate owner. Built openly under GPLv3.

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

Aevr handles development, design, and direction. Arqe handles macOS builds. Small, independent, no investors.

It started as a personal fork - strip the telemetry, rebrand it, make it feel right. Then Modrinth got acquired. The independence angle stopped being aesthetic and started being structural.

Modrinth was acquired by Spark Universe in early 2026. LuniVex was already in development before that. The acquisition made the reasons more obvious, not the reason we started.

No. Zero analytics, zero crash reporters, zero third-party SDKs. The original Theseus launcher had PostHog, Sentry, and Intercom - all three are gone. Verify it yourself 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 mod browsing and installs. Mojang's auth servers to sign in with your Minecraft account. That's it - nothing else.

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

It's out now. Head to the Download page to get it.

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

Yes, it's planned. No timeline yet - Windows and macOS come first.

Vanilla, Fabric, Quilt, Forge, and NeoForge. Modern Minecraft versions including 26.x are supported.

If you're coming from Theseus or the Modrinth App, your instances should be compatible. More migration guidance will be added post-launch.

Yes. It's built on Modrinth's Theseus which is GPLv3. LuniVex inherits that license - the source is public and forkable.

The repo is on GitHub. Issues and PRs are open. For art, testing, or Linux builds 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.

Before the first public release. The source ships alongside the build, not after.