An expansion pack is a large commercial add-on to a game. Compared to DLCs that usually just add a civilization or two and possibly a scenario or two, expansion packs usually add several new civs, units and such and possibly even some completely new concepts such as religion.

Civilization IIIEdit

Civilization III has the following expansion packs:

• Play the World
• Conquests

Civilization IVEdit

Civilization IV has the following expansion packs:

• Warlords
• Beyond the Sword

Civilization VEdit

Civilization V has the following expansion packs:

• Gods & Kings
• Brave New World