A cross-platform virtual tabletop for multiplayer card games https://cockatrice.github.io
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Lukas Brübach fd25d102bf [Server] Harden Swiss tournament engine against drops and stalls
- link match sub-games to the hub through QPointer so a finished match can
  never dereference a torn-down parent game
- a player who leaves the hub is dropped: no longer paired, current
  undecided match awarded to the opponent, absent from the bracket
- refuse to spawn a match game when either participant is disconnected, and
  set disconnectRemovesPlayer on match games so a mid-match disconnect ends
  it instead of leaving a half-present participant
- match winner is a strict majority (gamesPerMatch/2+1); an exhausted
  series with no majority is recorded as a draw so the round always advances
- match games are started without force-start: a missing deck no longer
  kicks the player; the game stays open for deck selection
- buyes are handed to every leftover player, worst-ranked first, at most one
  per player over the tournament
- tournament hubs cannot start on mere 'everyone ready': host force-start is
  required and fewer than two players never starts
- sub-game creator copies the real player user info instead of fabricating
  IsAdmin
2026-09-02 10:28:49 +02:00
.ci [App] Add onboarding wizard (#7064) 2026-08-24 23:05:58 +02:00
.github Bump actions/checkout from 6 to 7 (#7210) 2026-08-29 18:23:45 +02:00
.tx Remove webclient (extracted to Webatrice repo) (#6848) 2026-05-08 09:14:53 -04:00
cmake [App] Add onboarding wizard (#7064) 2026-08-24 23:05:58 +02:00
cockatrice [VDS] Fix search filter not being applied on refresh (#7229) 2026-08-31 10:28:50 +02:00
doc [Doxygen] Add troubleshooting for card pictures and logs (#7125) 2026-08-24 21:38:04 +02:00
libcockatrice_card [Cards] Artist attribution (#7092) 2026-08-21 02:54:36 +02:00
libcockatrice_deck_list add a limit to the size of deckfiles cockatrice can load (#7163) 2026-08-29 15:21:04 +02:00
libcockatrice_filters [CI] Remove Qt5 (#7071) 2026-08-08 22:04:50 +02:00
libcockatrice_interfaces [Server/Client/Protocol] Reporting users + moderation queue functionality (#7091) 2026-08-21 15:00:13 +02:00
libcockatrice_models [Refactor] Batch CardDatabaseModel enabled-sets rebuild into one model reset (#7113) 2026-08-14 09:03:24 +02:00
libcockatrice_network [Server] Harden Swiss tournament engine against drops and stalls 2026-09-02 10:28:49 +02:00
libcockatrice_protocol [Protocol] Drop redundant is_tournament from the game-state event 2026-09-02 10:27:51 +02:00
libcockatrice_rng [CI] Remove Qt5 (#7071) 2026-08-08 22:04:50 +02:00
libcockatrice_settings [HomeTab] Introduce button color source setting (#7181) 2026-08-25 19:27:07 +02:00
libcockatrice_utility [Server/Client/Protocol] Reporting users + moderation queue functionality (#7091) 2026-08-21 15:00:13 +02:00
oracle [Cards] Artist attribution (#7092) 2026-08-21 02:54:36 +02:00
servatrice [Server/Client/Protocol] Reporting users + moderation queue functionality (#7091) 2026-08-21 15:00:13 +02:00
tests increase the timeout for the hashing performance test (#7166) 2026-08-29 15:20:49 +02:00
vcpkg@9e593bb18e Update vcpkg submodule to 2026.07.29 release (+ add baseline) (#7067) 2026-08-05 22:00:06 +02:00
.clang-format Enable RemoveSemicolon & update format.sh (#6896) 2026-05-16 20:26:37 +02:00
.cmake-format.json rework formatting with cmake-format (#4627) 2022-06-08 21:14:26 -04:00
.dockerignore Update CONTRIBUTING and more travis removing (#4179) 2020-11-28 03:14:15 -05:00
.gitignore [Card Database] Improve loading times through binary cache (#7051) 2026-07-27 23:12:53 +02:00
.gitmodules Docs: Use doxygen-awesome-css theme (#6512) 2026-01-24 11:22:43 +01:00
CMakeLists.txt Correct ccache default setting (#7190) 2026-08-29 15:21:38 +02:00
docker-compose.yml Docker compose: Link to our GHCR hosted servatrice image (#6728) 2026-03-22 10:28:24 +01:00
docker-compose.yml.windows Docker compose: Link to our GHCR hosted servatrice image (#6728) 2026-03-22 10:28:24 +01:00
Dockerfile Docker: Build ARM image natively (#7046) 2026-08-23 15:51:33 +02:00
Doxyfile [Networking] Doxygen (#7030) 2026-07-27 11:27:00 +02:00
format.sh Fix a bug with a symlink dir not resolving correctly. (#7148) 2026-08-18 21:50:12 +02:00
LICENSE update the address of the fsf in the license (#6113) 2025-09-10 18:18:34 -04:00
README.md [CI] Remove Qt5 (#7071) 2026-08-08 22:04:50 +02:00
shell.nix nix: Add development utilities to shell.nix (#5725) 2025-03-15 19:03:26 +00:00
vcpkg.json Update vcpkg submodule to 2026.07.29 release (+ add baseline) (#7067) 2026-08-05 22:00:06 +02:00


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 Cockatrice Eternal Download Count

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:
Download Stable Release  
Latest beta version:
Download Beta Release   
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

Community Resources Discord

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

Cockatrice Repo Analytics

Kudos to all our amazing contributors ❤️

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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:

  • Good first issue
    Issues tagged in this way provide a simple way to get started. They don't require much experience to be worked on.
  • Help wanted
    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 CI Docs

There are various places where useful information for different needs are maintained:

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 Transifex Project

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 CI Desktop CI Docker

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 release folder:
    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 code
Note: 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

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 GPLv2 License

Cockatrice is free software, licensed under the GPLv2.