| Movement | Only friendly units, allied to the city, may move, retreat or evade onto or through a hex with a city gate. The gate is considered open and will not prevent these movements. Enemy units will follow the movement rules for a scalable city wall hex or a fortified city wall hex per city special rules. |
| Battle | A City Gate hex has the same battle rules and restrictions as a Scalable City Walls hex or a Fortified City Walls hex. |
| Close Combat | |
| Range Combat | |
| Line of Sight | A city gate hex blocks line of sight to units behind the city gate hex and vice versa. |