GAMESS (US)

General Atomic and Molecular Electronic Structure System (GAMESS (US)) is computer software for computational chemistry. The original code started on October 1, 1977 as a National Resources for Computations in Chemistry project. In 1981, the code base split into GAMESS (US) and GAMESS (UK) variants, which now differ significantly. GAMESS (US) is maintained by the members of the Gordon Research Group at Iowa State University. GAMESS (US) source code is available as source-available freeware, but is not open-source software, due to license restrictions.

Developer(s)Iowa State University Quantum Chemistry Group
Initial release1 October 1977 (1977-10-01)
Stable release
Apr 20, 2017 / April 20, 2017 (2017-04-20)
Written inFORTRAN 77, C
Operating systemWindows; Unix, Unix-like: Linux, FreeBSD, Mac OS X
Available inEnglish
TypeComputational chemistry
LicenseProprietary freeware
Websitewww.msg.chem.iastate.edu/gamess
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