Open Borders is an agreement that can be negotiated through diplomacy in the Civilization games. It allows units owned by one civilization to enter another civilization's territory without declaring war.
Civilization IV
Civilization V
Civilization VI
Civilization VII
Other games
Open Borders is not present in (or the article has not been created for) the following games :
| Game | Article |
|---|---|
| Civilization III | Open Borders (Civ3) |
| Civilization: Beyond Earth | Open Borders (CivBE) |
| Civilization Revolution | Open Borders (CivRev) |
| Civilization Revolution 2 | Open Borders (CivRev2) |
| CivWorld | Open Borders (CivWorld) |
| Freeciv | Open Borders (Freeciv) |
| Civilization: Call to Power | Open Borders (CTP1) |
| Call to Power II | Open Borders (CTP2) |
| C-evo | Open Borders (C-evo) |
| Sid Meier's Colonization | Open Borders (Col) |
| FreeCol | Open Borders (FreeCol) |
| Civilization IV: Colonization | Open Borders (Civ4Col) |
| Sid Meier's Alpha Centauriā | Open Borders (SMAC) |
| Starships | Open Borders (Starships) |
Not in the following games
It has been confirmed that Open Borders is not present in the following games :
| Game |
|---|
| Civilization |
| Civilization II |
|
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