|Days||Accessible after Day 13|
|NPCs||Isaiah, Tobias, Bluebit, Emi, Archineers, Kingdom Force, Villagers, Animals, Mike|
|Enemies||(Siege) Clockwork Soldier, Clockwork Brute, Clockwork Knight, Clockwork Archer, Pain|
Antonia West is the western district of Antonia, where Lock enters Antonia for the first time. It is the only area accessible until the Siege minigame in that area is completed. It has gates to Archineer Square, Antonia North, and Antonia South, as well as an exit to the beaches to the west via the World Map.