Civilization VII · Antiquity Age · DLC Tonga
Tonga is built for a maritime-diplomatic game from the very first turn — the only Antiquity civilization that can push Scouts into Deep Ocean immediately, letting it find and befriend distant Independent Powers years ahead of anyone else.
Unique Ability
"Lords of the South" grants increased Influence on the Palace and City Halls in Settlements adjacent to Coast, and a free Trade Route from any new City-State the moment you become its Suzerain — though Tonga can't use the City-State Incorporate or Levy Unit actions. Later tiers let Trade Routes cross Ocean terrain without damage and add further Influence.
Unique Unit
The Tehina is a unique Scout that can enter Deep Ocean even in the Antiquity Age, letting Tonga explore distant coastlines and contact far-off Independent Powers long before other civilizations reach them.
Unique Infrastructure
Tonga's unique buildings, Langi (Culture, plus Food per adjacent Resource or Wonder) and Vaikaukau (Happiness, plus Culture per adjacent Coastal tile or Wonder), combine into the Tofi'a Unique Quarter, which adds Culture per Trade Route to a City-State and lets Scouts of any Age enter Ocean tiles safely. The associated Wonder, Ha'amonga 'a Maui, must be placed adjacent to Coast tiles and boosts Culture and Food on Fishing Boats.