| ALAS | ⊕ 1964 | ↓ ↑ ⊕ Specialised Languages | ⊕ Difference Equations | ⊕ United States | Continuous simulation language |
| ALGAN | ⊕ 1964 | ↓ ↑ ⊕ Specialised Languages | ⊕ Algebraic | ⊕ Germany | An extension of FORTRAN to solve sets of linear equations |
| ALGEK | ⊕ 1964 | ↓ ↑ ⊕ Specialised Languages | ⊕ COBOL coeval | ⊕ Russian Federation | Russian ALGOL/COBOL hybrid |
| BUGSYS | ⊕ 1964 | ↓ ↑ ⊕ Specialised Languages | ⊕ Animation | ⊕ United States | Pattern based animation language |
| CAPS | ⊕ 1964 | ↓ ↑ ⊕ Specialised Languages | ⊕ Process interaction | ⊕ United Kingdom | Precursor of CSL |
| COMPUTEST | ⊕ 1964 | ↓ ↑ ⊕ Specialised Languages | ⊕ CAI languages | ⊕ United States | CAI and interviewing language |
| CORAL 64 | ⊕ 1964 | ↓ ↑ ⊕ Specialised Languages | ⊕ Other UK historic languages | ⊕ United Kingdom | Radar Establishment Systems Language |
| DDL | ⊕ 1964 | ↓ ↑ ⊕ Specialised Languages | ⊕ 2d shape | ⊕ United States | Drawing Descriptive Language |
| DETAB/65 | ⊕ 1964 | ↓ ↑ ⊕ Specialised Languages | ⊕ Decision tables | ⊕ United States | SHARE/SIGPLAN decision table language |
| ESP | ⊕ 1964 | ↓ ↑ ⊕ Specialised Languages | ⊕ Activity scanning | ⊕ United Kingdom | Elliot Bros simulator package |
| ETRAN | ⊕ 1964 | ↓ ↑ ⊕ Specialised Languages | ⊕ Monte Carlo | ⊕ United States | NIST Monte Carlo system |
| Hart | ⊕ 1964 | ↓ ↑ ⊕ Specialised Languages | ⊕ Symbolic | ⊕ United States | Early symbolic analysis language written in Lisp |
| HYBLOC | ⊕ 1964 | ↓ ↑ ⊕ Specialised Languages | ⊕ Expression oriented | ⊕ United States | Hybrid BLOC language |
| LYaPAS | ⊕ 1964 | ↓ ↑ ⊕ Specialised Languages | ⊕ Pure APLs | ⊕ Russian Federation | Symbolic extensions to APL |
| MADS | ⊕ 1964 | ↓ ↑ ⊕ Specialised Languages | ⊕ 2d shape | ⊕ United States | |
| McClure simulation language | ⊕ 1964 | ↓ ↑ ⊕ Specialised Languages | ⊕ Digital | ⊕ United States | TI digtal language |
| MIDAS II | ⊕ 1964 | ↓ ↑ ⊕ Specialised Languages | ⊕ Expression oriented | ⊕ United States | Digital simulation language |
| MILITRAN | ⊕ 1964 | ↓ ↑ ⊕ Specialised Languages | ⊕ Event scheduling | ⊕ United States | Military simulation language |
| MIMIC | ⊕ 1964 | ↓ ↑ ⊕ Specialised Languages | ⊕ Expression oriented | ⊕ United States | Continuous simulations language |
| MUSIC 4B | ⊕ 1964 | ↓ ↑ ⊕ Specialised Languages | ⊕ Sound-Performance | ⊕ United States | Musical composition language |
| Namer | ⊕ 1964 | ↓ ↑ ⊕ Specialised Languages | ⊕ Ad hoc query languages | ⊕ United States | Graphically oriented data retrieval language |
| OPS-2 | ⊕ 1964 | ↓ ↑ ⊕ Specialised Languages | ⊕ Activity scanning | ⊕ United States | On-line Process Synthesizer version 3 |
| PACTOLUS | ⊕ 1964 | ↓ ↑ ⊕ Specialised Languages | ⊕ Digital | ⊕ United States | Digital simulation language |
| PAX | ⊕ 1964 | ↓ ↑ ⊕ Specialised Languages | ⊕ Cell-based | ⊕ United States | Picture representation language for Cloud Chambers |
| PLITRAN | ⊕ 1964 | ↓ ↑ ⊕ Specialised Languages | ⊕ IBM PL/Is | ⊕ Australia | PL/I Preprocessor |
| Quilian semantic network | ⊕ 1964 | ↓ ↑ ⊕ Specialised Languages | ⊕ Frame languages | ⊕ United States | Original frames system |
| SAL | ⊕ 1964 | ↓ ↑ ⊕ Specialised Languages | ⊕ 2d shape | ⊕ United States | Display primitives system for PDP-6 |
| SEPOL | ⊕ 1964 | ↓ ↑ ⊕ Specialised Languages | ⊕ Civil | ⊕ United States | Settlement POL |
| SIOUX | ⊕ 1964 | ↓ ↑ ⊕ Specialised Languages | ⊕ Expression oriented | ⊕ Italy | Continuous Simulation Language |
| SOL | ⊕ 1964 | ↓ ↑ ⊕ Specialised Languages | ⊕ Process interaction | ⊕ United States | Simulation Oriented Language |
| STRESS | ⊕ 1964 | ↓ ↑ ⊕ Specialised Languages | ⊕ Civil | ⊕ United States | STRuctual Engineering Systems Solver |
| STRIP-2 | ⊕ 1964 | ↓ ↑ ⊕ Specialised Languages | ⊕ Scanning and section control | ⊕ United States | Version 2 of NBS scanning language |
| THAT | ⊕ 1964 | ↓ ↑ ⊕ Specialised Languages | ⊕ Individual | ⊕ United Kingdom | British simulation language |
| TREC | ⊕ 1964 | ↓ ↑ ⊕ Specialised Languages | ⊕ External systems control | ⊕ United Kingdom | Interactive control system for reactors |
| Uhr | ⊕ 1964 | ↓ ↑ ⊕ Specialised Languages | ⊕ W European algorithmic systems | ⊕ United States | Pseudo-natural English for programming system |
| UNISIM | ⊕ 1964 | ↓ ↑ ⊕ Specialised Languages | ⊕ Digital | ⊕ United States | Network simulation language |