Privacy

What Sakura collects, why, and what you can do about it.

This policy explains what Sakura Client collects, why, who sees it and what you can do about it. It covers the Sakura launcher, the Sakura game client, sakuraclient.com and the services behind them, together “Sakura”. “We” and “us” mean the team that makes Sakura, and “you” means anyone who uses it. By using Sakura, you agree to this policy. Questions go to [email protected].

In short

  • Sakura sends us diagnostics on its own: your PC’s hardware, how the game runs, crashes, and what you do in the app. We use them to fix crashes and lag and to make Sakura better.
  • We keep what your account needs: your email address, friends, messages, purchases and what you share.
  • We don’t sell your data, show ads or use advertising trackers.
  • For a copy of your data, or to delete it, email [email protected].

What we collect

Your Sakura account

When you make an account, we keep:

  • your email address, username and display name, and the bio and picture you add
  • your password, as a one-way hash we can’t read back
  • the names and IDs of the Minecraft accounts you play with
  • your Discord ID, name and email address, if you link Discord or sign in with it
  • your founder number, and who invited you, if anyone did

We email you only about your account, such as codes to confirm your address or reset your password.

Microsoft and Minecraft sign-in

The launcher signs in to your Microsoft account with Microsoft directly and keeps the result in Windows’ own credential store on your PC. We never receive your Microsoft password or sign-in tokens. For an offline account, the skin you choose is kept on our servers so other Sakura players can see it.

Diagnostics

The launcher and the game send us diagnostics on their own, without asking each time, so we can see what crashes, what’s slow and what to fix next:

  • Your PC: processor and its cores, memory, graphics cards and their drivers, screen, Windows version, Java version and the memory Sakura gives the game, and on a laptop, its battery and power mode.
  • Performance: frame rate and frame times, load times, memory use and Java’s pauses, and how busy the processor and graphics memory are, sampled every few seconds while you play.
  • What happens in the app: the pages, windows and screens you open and what you do in them, the mods you switch, your video settings, and what Tune to this computer finds.
  • Launches and downloads: whether a launch, install or update worked, how long it took, and why it failed if it did.
  • Sign-ins and purchases: when they happen and whether they worked. Never your password or your card.
  • Servers: the address of each server you join and leave, and when.
  • Your own mods: which mods from Modrinth you’ve added, and their versions.
  • Your language and your version of Sakura.
  • Two IDs: a random install ID made when Sakura first starts, and a device ID. The device ID is a one-way hash of details of your PC (its name, your Windows user name and its network hardware), so we can tell PCs apart without keeping those details.

Diagnostics are sent whether or not you’re signed in. While you’re signed in, they’re linked to your account. The launcher opens when Windows starts unless you turn that off, and sends a short report each time it opens.

Crash reports

When the launcher or the game crashes, Sakura sends us what crashed: the error and where it happened, how long the game had been running, and the last part of the game’s log. It also uploads a diagnostic bundle: up to the last 2 MB of the game’s log, the crash report, your game options, the list of your own mods and the launcher’s log.

A game log holds whatever Minecraft and its mods printed, which can include chat, other players’ names, server addresses and your Minecraft name. Before anything is sent, Sakura takes your Windows user name out of file paths. We use crash reports only to find and fix crashes, and diagnostic bundles are deleted after 180 days.

Bug reports

When you report a bug, we receive what you write, your version of Sakura and, unless you turn it off, the same logs as a crash report. If we fix a bug you reported, we may thank you by name in the release notes and give you coins.

Your IP address and location

Our servers see your IP address whenever Sakura or this website connects to them. We keep it with diagnostics and presence (below), and use an IP location service to estimate where you are: your country, region and city, your time zone and your internet provider. We never use your device’s precise location.

Presence

While the game runs, signed in or not, it checks in with our servers every 30 seconds with your device ID, your Minecraft name and ID, the server you’re on and your version of Sakura. That’s how Sakura knows who’s online and where. We keep these check-ins for 7 days, and a list of the servers Sakura players play on, with when each was first and last seen and its most Sakura players at once.

The game also sends us the addresses in your saved server list, so it can show how many Sakura players are on each server.

Players around you

To show the Sakura badge, the game sends us the Minecraft names and IDs of the players on the same server as you every minute or two, and we answer with which of them play on Sakura and how to show them. It proves to us that you own your Minecraft account through Minecraft’s own sign-in check.

Servers can tell that you play on Sakura. The game marks itself in a way Sakura players can see, and a server that runs Sakura Integration learns your version of Sakura and which of its mods you have on.

Friends, groups and chat

We keep your friends, friend requests, blocks and groups, and your messages: what you write, the cards you send, your reactions and what you’ve read, so they’re there on every device. Screenshots you send are stored on our servers with their hidden details removed. Worlds you send are deleted 14 days after the last message that carries them. We also keep your music library and what you play, and your group can see what’s playing.

Your friends and groups see when you’re online and which server or world you’re in, with its game mode and version. Waypoints you share and pings you place go to your group.

Friends’ worlds

When a friend joins the world you’re playing, your two PCs connect directly where they can, so each one learns the other’s IP addresses, including the one on your home network. When they can’t, the connection goes through one of our relays, which sees both IP addresses but can’t read the game. You choose who can join in Friends.

New land in your worlds

In your own singleplayer worlds, new land is built on our servers. Sakura sends us the world’s seed and the positions of the chunks it needs, linked to your account while you’re signed in. You can turn this off with Horizon in the launcher’s Settings › Game.

Discord

The Discord mod shows what you’re playing on your Discord profile through the Discord app on your PC: the server, the song and a Join button. It’s on until you turn it off in Mods. When someone asks to join you through Discord, we receive their Discord ID to pass the request on.

When you sign in with Discord, you also join Sakura’s Discord server. There, our bot records who invited each new member, posts new members and who invited them in a public channel, and reads messages to remove invites to other servers.

Notes and saved settings

Notes you leave in the welcome world are kept with your name and shown to other players after we review them. Mod settings you save to a profile are kept on our servers, on your account or, while you’re signed out, on your device ID.

Purchases, coins and gifts

We keep your coin balance and its history, what you own and wear, the gifts you give and get (with any note), and your orders. Payments go through Stripe, which handles your card, and we never see it. We send Stripe your email address, your account ID and the order. Someone you give a gift to sees that it came from you.

Invites

When you share an invite link, we record who joined through it, and reward you once they play. Your invite page shows your profile and founder number to anyone who opens it, and joining through a link makes you and the inviter friends.

This website

This website uses cookies only to keep you signed in: one that lasts about an hour, one that lasts up to a year, and a short one while you sign in with Discord. It has no analytics or advertising cookies.

What stays on your PC

These never leave your PC unless you send them:

  • your worlds, maps, waypoints and screenshots
  • server passwords that Auto login keeps, encrypted
  • what Import reads from your other launchers, which never includes their accounts. On its first start, the launcher looks through your drives for other launchers to import from.
  • your Stream mod connections. Sakura talks to Twitch, YouTube, Kick and the donation services directly, and keeps their chat and donations only while it shows them.

How we use it

  • to run Sakura: accounts, friends, chat, presence, badges, the store and everything else it does
  • to find and fix crashes, lag and failed downloads
  • to keep accounts safe and stop cheating, fraud and abuse. If the game finds its files have been tampered with, it reports that with your device ID and IP address.
  • to handle purchases, gifts and rewards
  • to answer you when you write to us
  • to understand how Sakura is used and decide what to make next

Who we share it with

We don’t sell your data. We share it only:

  • With services that run Sakura for us: hosting, storage, email and IP location. They handle it only to run Sakura.
  • With services you use through Sakura: Microsoft and Mojang, to sign in and check your Minecraft account; Discord, when you link it or use the Discord mod; Modrinth, when you browse or add mods and packs (Sakura also sends it fingerprints of your own mod files to check them); Stripe, when you buy coins; and the streaming and donation services you connect in the Stream mod.
  • With mc-heads.net, which draws players’ faces in the launcher, the game and on this website. It gets the name or ID of the player shown and your IP address.
  • With other players, as this page describes: your friends and groups, the people you message, and anyone, for what’s public.
  • If Sakura changes hands: if Sakura is ever taken over or merged, your data goes with it, and this policy keeps applying until you’re told otherwise.
  • When the law requires it, or to protect the safety of people, Sakura or its players.

What’s public

Anyone can see:

  • your Sakura username and profile card, and your cosmetics in the world
  • the skin of an offline account
  • notes you leave in the welcome world, once reviewed
  • your profile and founder number on your invite page
  • your name in our release notes, if you reported a bug we fixed
  • in our Discord server, that you joined and who invited you

How long we keep it

  • presence check-ins: 7 days
  • email codes: about a day
  • worlds you send: 14 days after the last message that carries them
  • crash diagnostic bundles: 180 days
  • everything else: for as long as your account exists, or as long as we need it to run and improve Sakura

Where it’s processed

Sakura’s servers, and the services we use, are in more than one country. Your data may be processed and stored outside the country you live in, where data laws may differ, and we protect it the same way wherever it is.

Security

Passwords are stored as one-way hashes, sign-ins on your PC are kept in Windows’ credential store, and connections to Sakura are encrypted. No system is perfectly secure, so we can’t promise that yours can never be broken into.

Children

Sakura isn’t meant for children under 13, and we don’t knowingly collect data from them. If you’re under 13, please don’t make a Sakura account. If you’re a parent and think your child has given us data, email us and we’ll delete it. In some countries, young people need a parent’s permission to make an account; if that’s you, ask first. Microsoft accounts have their own parental controls, through Microsoft Family Safety.

Servers and other sites

Minecraft servers you join are run by other people. They see what any Minecraft server sees, such as your IP address, your Minecraft name and your chat, and handle it under their own rules. The same goes for other sites Sakura links to.

Your choices

  • Where you play: set yourself to Invisible in Friends.
  • Who can join your world: choose in Friends.
  • Discord status: turn off Discord in Mods.
  • New land on our servers: turn off Horizon in the launcher’s Settings › Game.
  • Starting with Windows: turn off Open at startup in the launcher’s Settings.
  • Logs with bug reports: leave them out when you report a bug.
  • Linked accounts: unlink Discord, or remove a Minecraft account, in the launcher’s Settings.
  • A copy of your data, or deleting it: email [email protected] from your account’s address, and we’ll do it within a reasonable time. Data Microsoft holds about your Microsoft account is managed in your Microsoft account’s privacy settings.

Changes

We may change this policy as Sakura changes. The date at the top shows the last change, and when a change matters, we’ll also say so in the launcher.

Contact

Questions about this policy or your data go to [email protected].