- Main article: Leaders (Civ2)
The default male leader of the Celts is Cunobelin (died c. 40), a king of the Catuvellauni Britons who controlled the area around Colchester and St Albans just prior to the Roman conquest of southern Britain. His story was loosely adapted by Shakespeare as Cymbeline.
The default female leader is Boadicea, a variant spelling of Boudica (died c. 60), wife of Prasutagus, a king of the Iceni Britons who controlled the area around Norfolk. Unjust treatment following her husband's death provoked her to leading a failed revolt against Roman rule.
The Celtic AI is rational and expansionist.
- Main article: City (Civ2)
The Celtic city list is a mix of Welsh, Irish, and Scottish placenames. The names are mostly modern English forms and are mostly medieval sites having nothing to do with Cunobelin or Boadicea and little to do with the ancient Celtic civilization that spread from Ireland to Greece and Anatolia.
- Cardiff (default capital)
- Dinas Powys
- Dinas Emrys
When this list is completed, the game continues with the names in the extra cities list. When that list is completed, the game cycles back to the top of this list with "Cardiff" again.
- Main article: Scenario (Civ2)
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