| ACTRAN | ⊕ 1970 | ↓ ↑ ⊕ Specialised Languages | Hybrid | ⊕ Germany | Hybrid simulation language |
| CLASS | ⊕ 1970 | ↓ ↑ ⊕ Specialised Languages | Hybrid | ⊕ United States | |
| DISCO | ⊕ 1981 | ↓ ↑ ⊕ Specialised Languages | Hybrid | ⊕ Denmark | Simulation language |
| GASP IV | ⊕ 1973 | ↓ ↑ ⊕ Specialised Languages | Hybrid | ⊕ United States | General Activity Simulation Program |
| GASP-PL/I | ⊕ 1977 | ↓ ↑ ⊕ Specialised Languages | Hybrid | ⊕ United States | GASP in PL/I |
| PROSE | ⊕ 1975 | ↓ ↑ ⊕ Specialised Languages | Hybrid | ⊕ United States | Hybrid simulation language |
| SLAM II | ⊕ 1980 | ↓ ↑ ⊕ Specialised Languages | Hybrid | ⊕ United States | Extension of SLAM |