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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€Ž 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

Astronomy (CivRev) This is a disambiguation page used to differentiate articles on different topics of the same name. If an internal link led you to this page, you may want to go back and edit it so that it points to the desired specific page.