| ALGOL N | ⊕ 1967 | ↓ ↑ ⊕ Numerical Scientific | ⊕ True ALGOL60s | ⊕ Japan | Simple extensible variant to Algol 60 |
| ALGOL/ZAM | ⊕ 1967 | ↓ ↑ ⊕ Multi-purpose | ⊕ True ALGOL60s | ⊕ Poland | Algol for the Polish ZAM computer |
| macro-Algol | ⊕ 1967 | ↓ ↑ ⊕ Numerical Scientific | ⊕ True ALGOL60s | ⊕ France |