General Atomic and Molecular Electronic Structure System (GAMESS-UK) is a computer software program for computational chemistry. The original code split in 1981 into GAMESS-UK and GAMESS (US) variants, which now differ significantly. Many of the early developments in the UK version arose from the earlier UK based ATMOL program, which, unlike GAMESS, lacked analytical gradients for geometry optimisation.

Developer(s)Computing for Science Ltd.
CCLRC Daresbury Laboratory
Initial release1981; 40 years ago (1981)
Stable release
7.0 / 1 January 2010; 11 years ago (2010-01-01)
Written inC, Fortran
Operating systemLinux, Mac OS X, AIX, Tru64 UNIX; Windows
Platformx86, x86-64, PowerPC, MIPS, SPARC, Alpha
Available inEnglish
TypeComputational chemistry
LicenseProprietary: freeware in UK; demo, serial, parallel, site-wide, joint software development

GAMESS-UK can perform many general computational chemistry calculations, including Hartree–Fock method, Møller–Plesset perturbation theory (MP2 & MP3), coupled cluster (CCSD & CCSD(T)), density functional theory (DFT), configuration interaction (CI), and other advanced electronic structure methods. Calculation of valence bond wave functions are possible by the TURTLE code, due to J. H. van Lenthe.

See alsoEdit


  • Guest *, Martyn F.; Bush, Ian J.; Van Dam, Huub J. J.; Sherwood, Paul; Thomas, Jens M. H.; Van Lenthe, Joop H.; Havenith, Remco W. A.; Kendrick, John (2005). "The GAMESS-UK structure package: algorithms, developments and applications". Molecular Physics. 103 (6–8): 719–747. arXiv:1506.05421. Bibcode:2005MolPh.103..719G. doi:10.1080/00268970512331340592. This is one of the most cited chemistry papers

External linksEdit