They may also include density functional theory (DFT), molecular mechanics or semi-empirical quantum chemistry methods.
The programs include both open source and commercial software.
Most of them are large, often containing several separate programs, and have been developed over many years.
The following tables illustrates some of the main capabilities of notable packages: Slater-type_orbital † "Academic": academic (no cost) license possible upon request; "Commercial": commercially distributed.
2 QuanPol is a full spectrum and seamless (HF, MCSCF, GVB, MP2, DFT, TDDFT, CHARMM, AMBER, OPLSAA) QM/MM package integrated in GAMESS-US.