Modules

Modules are Airship upgrades and tools purchasable from Ship Workshop for and Workshop of Curiosities for. Each Airship has a different number of Module slots. Buying a new Airship will transfer the Modules, but will discard some if the new ship has a smaller number of Module slots (the right-most slots). Most Modules that are actively "used" have durability. Once the Modules durability falls to 0, it can no longer be used until repaired (except for the Scrap Collector, as it converts its own durability from scraps into Iron). Modules can be repaired by collecting on The Map. Any airship has the ability to collect Scrap, as long as it can be directly used to repair any modules.

Alternatively, modules can also be replaced with other ones, though this is not recommended for anything but the basic gathering tools. This also doesn't work with the exact same module, as you can only have one module of the same type installed at the same time (though some modules with similar effects can be stacked).

Skills and Perks
Module durability can be increased by +25% / +50% with the skill: