* [Installer][Client] Back up user data before old uninstallers can delete it * [Installer][Client] Fix stale backup resurrection, batch session backups, extend coverage NSIS: clear stale %TEMP% backup and only arm restore when something was copied, directory-existence checks, back up loose .dec decks, drop downloaded pics but keep pics\CUSTOM. Helper: single session dir per run (ms timestamps), same-basename disambiguation, partial copies still report their location. * [Installer][Client] Fix review findings: throttle backups, NSIS old dir, portable messaging * [Installer][Client] Fix review findings: backup markers, NSIS relocate, size cap * [Installer][Client] Fix review findings: sounds, session coverage, NSIS wording Client: back up data/sounds in portable mode and mention it in the warning; reuse a recent session only when complete and covering the current sources (source manifest), estimate size only for fresh copies, normalize dedup via isInsideDir. Helper: source manifest per session with sessionCoversSources(), clear out-params on all failure paths. NSIS: document defensive portable branch, merge backup over surviving data/ to repair partial deletes, copy (not move) wording in relocate, note .txt exclusion in deck notice. * [Installer][Client] Fix review findings: stale backup, empty reuse, relocate, portable warning NSIS: wipe TEMP backup once per run to avoid resurrecting deleted files, check data dir existence in relocate so dir-only trees are moved. Client: never reuse a recent session for an empty source set, only fall back to a covering session on copy failure, warn fresh portable installs instead of staying silent. * [Installer][Client] Fix review findings: usable session reuse, loose decks, NSIS pics, symlinks * [Installer][Client] Fix portable backup exclusions in offender merge * [Client] Split at-risk data warning into focused helpers Ricky's nit on the 200+ line warnAboutDataPathsInProgramDir: extract collection (portable/installed), backup, message building and dialog into named helpers. No behavior change, all tr() strings untouched. * [Client] Read path settings inside isPortableBackupExcluded * [Client] Make stateless at-risk helpers static * [Client] Extract at-risk data warning out of MainWindow * [Installer][Client] Fix review findings: subdir backup, portable warning, backup API NSIS: - Back up unknown top-level install subdirs (e.g. <installdir>\decks), not just loose deck files, so the 3.1.1 -> new upgrade no longer loses data folders the old RMDir /r deletes before the client ever runs. Payload dirs (plugins/translations/sounds/themes) stay in place to avoid restoring stale DLLs; restore + relocate handle the new backup set and the one-time notice covers both decks and folders. - Restart the %TEMP% backup when the 32/64-bit passes point at different dirs instead of merging (which restored one dir's files into the other); document that only the last pass relocates and the %TEMP% copy is not a durable second copy. Client: - Drop the portable at-risk warning: portable installs never shipped an uninstaller and portable updates preserve data/, so every portable user got a spurious dialog plus daily host-machine copies. - AtRiskDataWarning is now a plain class with Q_DECLARE_TR_FUNCTIONS instead of QObject+Q_OBJECT; logging category renamed to at_risk_data_warning; MainWindow wrapper inlined into startupConfigCheck. - Lower the synchronous startup backup cap 500 -> 200 MB. Utility/tests: - Remove test-only backupAtRiskPath()/findRecentBackupSession() and the no-marker/no-manifest legacy paths; isBackupSessionComplete() now requires the complete marker; tests updated to the plural API. * [Client] Restore collectInstalledAtRiskPaths per reviewa23e02b5removed the definition along with the portable helpers, breaking the build (undefined reference at link time, and isInsideAnyDir unused under -Werror on Arch/Debian 13). Restores the202c0d65version (pathsInsideDir plus loose top-level deck files) as suggested. --------- Co-authored-by: Lukas Brübach <Bruebach.Lukas@bdosecurity.de>
Cockatrice | Download | Related | Community | Contribute | Build | Run
To get started with Cockatrice ⇢ view our webpage
To get support, or suggest changes to the app ⇢ file an issue (How?) To help with development ⇢ learn how to contribute
Cockatrice
Cockatrice is an open-source, multiplatform application for playing tabletop card games over a network. The program's server design prevents users from manipulating the game for unfair advantage. The client also provides a single-player mode, which allows users to brew while offline.
This project uses C++ and the Qt libraries.
Download 
Downloads are available for stable releases and the current beta version in development.
There is no strict release schedule for either of them.
Latest stable release:![]()
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Latest beta version:![]()
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While incorporating the latest fixes and features, beta builds may not be stable or contain new bugs! Please report any findings and open new issues when testing them!
Related Repositories
- Magic-Token: File with MtG token data for use in Cockatrice
- Magic-Spoiler: Code to generate MtG spoiler data from MTGJSON for use in Cockatrice
- cockatrice.github.io: Code of the official Cockatrice webpage
- io.github.Cockatrice.cockatrice: Configuration of our Linux
flatpakpackage hosted at Flathub - Webatrice: Web client for Cockatrice servers (TypeScript / React)
Community Resources 
Join our Discord community to connect with other project contributors (#dev channel) or fellow users of the app. Come here to talk about the application, features, or just to hang out.
Important
For support regarding specific servers, please contact that server's admin/mods and use their dedicated communication channels rather than contacting the team building the software.
Contribute
Code | Documentation | Translation
Repository Activity
Code
To contribute code to the project, please review our guidelines first.
We maintain two tags for contributors to easier find issues to potentially work on:
Issues tagged in this way provide a simple way to get started. They don't require much experience to be worked on.
This tag is used for issues that we are looking for somebody to pick up. Often this is for feature suggestions we support, but don't have the time to work on ourselves.
For both tags, we're willing to provide help to contributors in showing them where and how they can make changes, as well as code reviews for submitted changes.
We'll happily advice on how best to implement a feature, or we can show you where the codebase is doing something similar before you get too far along - put a note on an issue you want to discuss more on!
You can also have a look at our Todo List in our Code Documentation or search the repo for \todo comments.
Documentation 
There are various places where useful information for different needs are maintained:
- Official Code Documentation
- Official Wiki
Community supported - Official Webpage
- Official README
This file - Official CONTRIBUTING
Cockatrice tries to use the Google Developer Documentation Style Guide to ensure consistent documentation. We encourage you to improve the documentation by suggesting edits based on this guide.
Translation 
Cockatrice uses Transifex to manage translations. You can help us bring Cockatrice and Oracle to your language and just adjust single wordings right from within your browser by visiting our Transifex project page. The Webatrice web client manages its own translations in its repo.
Check out our Translator FAQ for more information about getting involved, and join a group of hundreds of others!
Build

Dependencies: (for minimum versions search our CMake file)
Oracle can optionally use some packages to load compressed card files:
Basic compilation steps:
mkdir build
cd build
cmake ..
make
You can then
- Create a Cockatrice installation inside the
releasefolder:make install - Or make an installation package specific to your system:
make package
Note
Detailed compiling instructions can be found in the Cockatrice wiki at Compiling Cockatrice
The following flags (with their non-default values) can be passed to cmake:
| Flag | Description |
|---|---|
-DWITH_SERVER=1 |
Build Servatrice server |
-DWITH_CLIENT=0 |
Don't build Cockatrice client |
-DWITH_ORACLE=0 |
Don't build Oracle card database tool |
-DCMAKE_BUILD_TYPE=Debug |
Compile in debug mode Enables extra logging output, debug symbols, and much more verbose compiler warnings |
-DWARNING_AS_ERROR=0 |
Don't treat compilation warnings as errors in debug mode |
-DUPDATE_TRANSLATIONS=1 |
Configure make to update the translation .ts files for new strings in the source codeNote: make clean will remove the .ts files |
-DTEST=1 |
Enable regression tests Note: make test to run tests, googletest will be downloaded if not available |
Tip
Build code documentation (Doxygen) according to our configuration into
/docs:doxygen Doxyfile
Run
Cockatrice is the game client
Oracle fetches card data
Servatrice is the server
Docker
You can build an image & deploy a Servatrice (Cockatrice server) container using Docker and our Dockerfile yourself.
For more details, look into our wiki section on Setting up Servatrice.
You'll also find more hints on our pre-build image there, or the docker-compose file which will configure and run both a MySQL server and Servatrice.
License 
Cockatrice is free software, licensed under the GPLv2.
