CMU is a multiplayer sandbox game set in the Alien universe. It is a fork of RMC14, itself based on CM13, and incorporates assets from a variety of sources (copyright information is included in each metadata file).
CMU welcomes contributions from the community! We maintain a list of tasks and projects needing help which can be found under the repository issues tab. Join our Discord to get involved and discuss contributions.
The vast majority of code implemented before 5/1/2026 is licensed under MIT.
All code implemented post 4/30/2026 is licensed under an AGPL 3.0 License unless noted otherwise.
Exceptions will be clearly declared in both the header and the file as well as a reason for why.
Most art assets are licensed under CC-BY-SA-3.0 unless stated otherwise. Assets have their license and the copyright in the metadata file. Example.