Legal

Privacy Policy

What LumeClient, the launcher and lumeclient.net do with your data. Short version: we use what the features need, we don't sell anything, and there are no ads or trackers.

Last updated: 31 October 2026
Contents 1. Who is responsible 2. What we use and why 3. Stored on your device 4. Other services 5. Who receives data 6. Outside the EU 7. How long we keep it 8. Your rights 9. Children 10. Security 11. Changes

1. Who is responsible

The data controller is the Lumennox team, which runs LumeClient and lumennox.net, based in Denmark. Contact us about anything in this policy at legal@lumennox.net.

Your Lumennox account, the lumennox.net store and the Lumennox server are also covered by the Lumennox Privacy Policy. This policy covers what's specific to LumeClient.

2. What we use and why

The client and launcher work without an account. Most of what's below only happens once you sign in with a Lumennox account, or when you choose to use a feature.

DataWhat forLegal basis (GDPR)
Lumennox account: username, email, password (stored hashed by lumennox.net)Signing in to LumeClientContract, art. 6(1)(b)
Sign-in tokens for the launcher, client and websiteKeeping you signed in. Our servers store only a scrambled (hashed) copy.Contract
Linked Minecraft account: username and UUIDShowing your cosmetics and badge to other playersContract
Cosmetics you own, wear and save as outfits; purchases and walletYour wardrobe; delivering what you bought (payments are handled by the lumennox.net store)Contract; bookkeeping law, art. 6(1)(c)
Synced settings: modules and HUD layoutThe same setup on every PCContract
Friends, friend requests, messages, invites and typing statusFriends and chat in the game and launcherContract
Online status: online or offline, playing or in the launcher, and the server you're on (only if you choose to share it)Showing friends that you're online; you can appear offlineContract
The name you play under, as an offline-mode UUIDShowing your cosmetics on offline-mode servers and Go Public worldsContract
UUIDs of players near you in gameLooking up which cosmetics they wear, so you can see themLegitimate interest, art. 6(1)(f): showing cosmetics is the feature
Screenshots you shareHosting the image behind the share link (anyone with the link can see it)Contract
Crash reports, only when you press Send: crash log, game and launcher version, Windows version, Minecraft name, your noteFinding and fixing crashesLegitimate interest: fixing the software you use
Community capes: the image, name, description, likes, reports and creator earningsRunning the community store, moderation and paying creatorsContract; legal obligations
Go Public: the IP addresses of you and the players who join your worldRelaying the connection, only while your world is publicContract
Technical data: IP address, time, requestsSecurity, preventing abuse, rate limitsLegitimate interest: keeping the service safe

We don't sell data, show ads, profile you for marketing or use automated decision-making with legal effect.

3. Stored on your device

lumeclient.net

The website uses no cookies and no analytics or tracking. It keeps a few things in your browser's local storage, all needed for what you ask the site to do:

  • lume.auth: your sign-in, if you sign in;
  • lume-theme: the theme you picked;
  • your unsent cape drawing from the cape editor;
  • short-lived copies of release and server-status information, so pages load faster;
  • lume-intro (session only): whether you've seen the opening animation.

Signing out removes your sign-in; clearing your browser data removes the rest. Fonts and media are served from lumeclient.net itself.

The launcher and client

The launcher stores your accounts, settings and game files on your PC. Microsoft and Lumennox sign-in tokens are encrypted with Windows' own data protection. Uninstalling the launcher removes them.

4. Other services you connect to

Some features load data directly from other services, which then see your IP address and the request. They process it under their own privacy policies:

  • Microsoft and Mojang: Minecraft sign-in, game downloads and skins (launcher and client).
  • GitHub: release information and launcher updates.
  • mc-heads.net: Minecraft avatars and skins on this website (sends the Minecraft name shown).
  • mcsrvstat.us: the live status of the Lumennox server on this website.
  • Discord: if you turn on Discord Status, the client tells the Discord app on your PC what you're playing; Discord handles it from there.
  • Minecraft servers you join see what any Minecraft client sends them.

5. Who receives data

  • Our hosting provider, which runs our servers on our behalf under a data processing agreement.
  • Stripe, which processes card payments in the lumennox.net store. We never see your full card number.
  • Other players see what the features show them: your name, badge, cosmetics and community capes; friends also see your online status and messages.
  • Authorities, only when the law requires it.

6. Data outside the EU

Some of the services above (Stripe, Microsoft, GitHub, Discord) are based in the United States. Transfers to them rely on the EU–US Data Privacy Framework where the company is certified, or on the European Commission's standard contractual clauses.

7. How long we keep it

  • Account data, cosmetics, outfits, settings, friends and messages: while your account exists; deleted when you delete it.
  • Online status and the name you play under: replaced as you play; counts as expired after a few minutes.
  • Crash reports: deleted automatically after 90 days.
  • Shared screenshots: until you ask us to delete them, or your account is deleted.
  • Community capes: while they're published or waiting for review; turned-down capes until you delete them.
  • Purchases, wallet and creator earnings records: 5 years after the end of the financial year, as Danish bookkeeping law requires.
  • Sign-in tokens: until they expire or you sign out.

8. Your rights

Under the GDPR you can ask to see the data we have about you and get a copy, correct it, delete it, limit how we use it, or take it elsewhere. You can object to use based on legitimate interest, and withdraw any consent at any time. Write to legal@lumennox.net, from the email address on your Lumennox account so we can confirm it's you. We answer within one month.

You can also complain to the Danish Data Protection Agency, Datatilsynet (Carl Jacobsens Vej 35, 2500 Valby, Denmark, dt@datatilsynet.dk), or the authority in the EU country where you live.

9. Children

Lumennox accounts and LumeClient's online features are for people aged 13 and over; under 16 you need a parent's or guardian's permission. If you believe a child under 13 has given us data, contact us and we'll delete it.

10. Security

Everything travels over encrypted connections (HTTPS). Passwords and sign-in tokens are stored only in hashed form on our servers, and sign-in tokens on your PC are encrypted. If a breach puts your data at risk, we'll tell you and the authorities as the law requires.

11. Changes

If we change how we use data, we'll update this page and the date above, and announce important changes on this site or in the launcher.