translation projects. Sometimes the copyright holder actively support the patching and fixing efforts of a software community, sometimes even by releasing the source code under a software license which allows the software community the continued software support by themselves. Examples for such software are in the List of commercial video games with later released source code. The free and open source software movement was founded in the 1980s to solve the underlying problem of unofficial patches, the limited possibility for user self-support in binary only distributed software due to missing source code. Free and open source software demands from distributed software the availability of source code, which prevents the technical problems and legal uncertainties of binary only user patching of proprietary software. Examples in video games Examples in general software See also Fan labor Server emulator Source port Right to repair References Software maintenance Software release Unofficial adaptations Video game development Fan labor