The history of MicroCiv Eternal City is classified into several eras, mainly the City Era and the Eternal City Era.
| Era |
Existence |
Notes |
| Pregame |
1988 & 1989 |
Currency and properties began being used with some concepts developed. |
| City Era |
1989-1996 |
Rules verbally codified and the game is named City. |
| Intergame |
1996-2023 |
Plans to bring the game back never materialized. |
| Eternal City (Regenesis) |
2023 & 2024 |
Game brought back with version 1 rules of MicroCiv and some custom rules, including temporary experimentation with NPCs and virtual regions. |
| Eternal City |
2024-present |
Version 2 rules of MicroCiv adopted as well as some new custom rules. |