Naval Warfare & Sea Control: From Exploration to Modern

The Exploration Age in Civ VII is almost bound to the sea — the new world, colonial cities and overseas resources all need a navy. Control the sea and you control half the map.

1. Ship types

• Exploration: light sails scout and carry settlers.
• Mid: ships of the line give naval firepower.
• Modern: carrier + destroyer is sea dominance.

2. Establishing sea control

Clear enemy ships and blockade their coastal cities. Sea control cuts their coastal supply, crashing their strength.

3. Amphibious landing

1. Clear coast defense and garrison with navy first.
2. Land troops on undefended coast via transports.
3. Build a port after capture to hold the beachhead.

4. Common mistakes

• Bare landing: transports without escort get sunk.
• Ignoring supply: fleet too far from coast, supply cut.
• One ship type: missing transport or firepower breaks the chain.