- [MTA:SA](https://multitheftauto.com/) `⚠` - Multi Theft Auto (MTA) is a software project that adds network play functionality to Rockstar North's Grand Theft Auto game series, in which this functionality is not originally found. ([Source Code](https://github.com/multitheftauto/mtasa-blue)) `GPL-3.0``C++`
- [piqueserver](https://github.com/piqueserver/piqueserver) - Server for openspades, the first-person shooter in a destructible voxel world. ([Clients](https://github.com/yvt/openspades)) `GPL-3.0``Python/C++`
- [QuakeJS](https://github.com/begleysm/quakejs) - QuakeJS is a port of ioquake3 to Javascript that can be played in a browser. `MIT``Nodejs`
- [Quizmaster](https://github.com/nymanjens/quizmaster) - A web-app for conducting a quiz, including a page for players to enter their answers. `Apache-2.0``Scala`
- [Red Eclipse 2](https://redeclipse.net) - A FOSS Arena First-Person Shooter Similar to Unreal Tournament. ([Source Code](https://github.com/redeclipse/base)) `Zlib/MIT/CC-BY-SA-4.0``C/C++/deb`
- [Romm](https://github.com/zurdi15/romm) `⚠` - RomM (Rom Manager) is a web based retro roms manager integrated with IGDB. `GPL-3.0``Docker`
@ -1295,7 +1294,6 @@ Software that does not fit in another section.
- [AlertHub](https://github.com/Ardakilic/alerthub) `⚠` - AlertHub is a simple tool to get alerted from GitHub releases. `MIT``Nodejs/Docker`
- [Anchr](https://anchr.io) - Anchr is a toolbox for tiny tasks on the internet, including bookmark collections, URL shortening and (encrypted) image uploads. ([Source Code](https://github.com/muety/anchr)) `GPL-3.0``Nodejs`
- [Apache Solr](https://lucene.apache.org/solr/) - Solr is the popular, blazing-fast, open source enterprise search platform built on Apache Lucene. ([Source Code](https://lucene.apache.org/solr/downloads.html)) `Apache-2.0``Java/Docker/K8S`
- [asciinema](https://github.com/asciinema/asciinema-server) - Web app for hosting asciicasts. ([Demo](https://asciinema.org/)) `Apache-2.0``Elixir/Docker`
- [Bracket](https://evroon.github.io/bracket) - Flexible tournament system to build a tournament setup, add teams, schedule matches, keep track of scores and present ranking live to the public. ([Source Code](https://github.com/evroon/bracket)) `MIT``Docker/Nodejs`
@ -1429,7 +1427,6 @@ _Related: [Wikis](#wikis)_
- [Joplin](https://joplinapp.org/) - Joplin is a note taking application with Markdown editor and encryption support for mobile and desktop platforms. Runs client-side and syncs through self hosted Nextcloud or similar (alternative to Evernote). ([Source Code](https://github.com/laurent22/joplin)) `MIT``Nodejs`
- [kiwix-serve](https://www.kiwix.org/en/downloads/kiwix-serve/) - HTTP daemon for serving wikis from ZIM files. ([Source Code](https://github.com/kiwix/kiwix-tools)) `GPL-3.0``C++`
- [Livebook](https://livebook.dev) - Realtime collaborative notebook app based on Markdown that supports running Elixir code snippets, TeX and Mermaid Diagrams. Easily deployed using Docker or Elixir. ([Source Code](https://github.com/livebook-dev/livebook)) `Apache-2.0``Elixir/Docker`
- [Meemo](https://meemo.minimal-space.de/) - Personal notes stream with Markdown support. ([Source Code](https://github.com/cloudron-io/meemo)) `MIT``Nodejs`
- [Memos](https://usememos.com/) - An open source, self-hosted knowledge base that works with a SQLite db file. ([Source Code](https://github.com/usememos/memos)) `MIT``Docker/Go`
@ -1920,7 +1917,6 @@ _Related: [Software Development - Project Management](#software-development---pr
- [Focalboard](https://www.focalboard.com/) - Define, organize, track and manage work across individuals and teams (alternative to Trello, Notion, and Asana). ([Source Code](https://github.com/mattermost/focalboard), [Clients](https://www.focalboard.com/download/personal-edition/desktop/)) `MIT/AGPL-3.0/Apache-2.0``Nodejs/Go/Docker`
- [Kanbana](https://github.com/SrGMC/kanbana) - Create boards to track users and projects from flat markdown files (fork of Crepido). `MIT``Nodejs`
- [Kanboard](https://kanboard.org/) - Simple and open source visual task board. ([Source Code](https://github.com/kanboard/kanboard)) `MIT``PHP`
- [Minimalist Online Markdown Editor](http://markdown.pioul.fr) - The simplest and slickest online Markdown editor. ([Source Code](https://github.com/pioul/Minimalist-Online-Markdown-Editor)) `MIT``Nodejs`
- [myTinyTodo](https://www.mytinytodo.net/) - Simple way to manage your todo list in AJAX style. Uses PHP, jQuery, SQLite/MySQL. GTD compliant. ([Demo](https://www.mytinytodo.net/demo/), [Source Code](https://github.com/maxpozdeev/mytinytodo/)) `GPL-2.0``PHP`
- [Nullboard](https://github.com/apankrat/nullboard) - Single-page minimalist kanban board; compact, highly readable and quick to use. `BSD-2-Clause``Javascript`
- [Our Shopping List](https://github.com/nanawel/our-shopping-list) - Simple shared list application. Typical uses include shopping lists of course, and any other small todo-list that needs to be used collaboratively. ([Demo](https://osl.lanterne-rouge.info/)) `AGPL-3.0``Docker`