: The "War Within" quest unlocks the ability to purchase specific items (like Eidolon Arcanes) in 1x3 weekly sets using focus points.

Aside from automotive paint, "1x3" is a term frequently used in various gaming and simulation contexts to describe for buildings or items:

: A specific "Parrot Perch" building from the Pirate Event occupies a 1x3 space and provides defense boosts and medals.

: Players often manage limited space using small 1x3 culture buildings to maximize population efficiency.

: It is recommended to keep 1x3 medkits in your pockets to quickly treat bleeding during combat.

: Certain tactical rigs are prioritized because they can hold 1x3 magazines , which is critical for high-capacity weapon loadouts.