List of proprietary source-available softwareThis is a list of proprietary source-available software, which has available source code, but is not classified as free software or open-source software. In some cases, this type of software is originally sold and released without the source code, and the source code becomes available later. Sometimes, the source code is released under a liberal software license at its end of life as abandonware. This type of software can also have its source code leaked or reverse engineered.
List of commercial video games with later released source codeThis is a list of commercial video games with later released available source code. The source code of these commercially developed and distributed video games is available to the public or the games' communities. Commercial video games are typically developed as proprietary closed source software products, with the source code treated as a trade secret (unlike open-source video games). When there is no more expected revenue, these games enter the end-of-life as a product with no support or availability for the game's users and community, becoming abandoned.
Unofficial patchAn unofficial patch is a patch for a piece of software, created by a third party such as a user community without the involvement of the original developer. Similar to an ordinary patch, it alleviates bugs or shortcomings. Unofficial patches do not usually change the intended usage of the software, in contrast to other third-party software adaptions such as mods or cracks. A common motivation for the creation of unofficial patches is missing technical support by the original software developer or provider.
Jeu vidéo open sourcevignette| Simulateur de vol open source FlightGear. Un jeu vidéo open source, ou simplement un jeu open source, est un jeu vidéo dont le code source est open source, c'est-à-dire accessible et permettant des travaux dérivés. Ils sont souvent librement distribuables et parfois compatibles entre plates-formes. Tous les jeux open source ne sont pas des logiciels libres ; certains jeux open source contiennent du contenu propriétaire. Les jeux open source qui contiennent exclusivement du contenu libre sont conformes à la DFSG, et à la culture libre, et sont parfois appelés jeux libres.
Logiciel propriétaireUn logiciel propriétaire, logiciel non libre ou parfois logiciel privatif voire logiciel privateur, est un logiciel qui ne permet pas légalement ou techniquement, ou par quelque autre moyen que ce soit, d'exercer simultanément les quatre libertés logicielles que sont l'exécution du logiciel pour tout type d'utilisation, l'étude de son code source (et donc l'accès à ce code source), la distribution de copies, ainsi que la modification du code source.