Extensions can be obtained from the shop, the crate, or the blacksmith stations.

At most 3 extensions can be applied to each wagon. Once an extension is added, it can only be removed at the Blacksmith Station and cannot be replaced when adding new extensions.

Some extensions are not compatible with some wagons, and the extension effects may differ depending on the wagon. Please refer to the individual wagons page for details.

All extensions

Name Handbook description Notes
  Storage-Pull Moves items from the closest storage wagon to this wagon. If the wagon can consume both types of resource, the stone is prioritized.
  Storage-Push Moves items to the closest storage wagon.
  Front-Pull Moves items from the front neighbor to this wagon Can take any resources from either the input stack or the output stack.
  Auto-Drop Drops off produced items close by Does not start the fuse of dynamite or torpedo.
  Magnet-Pick Picks items very close to the wagon onto the wagon It does not try to match the type of resources on the input stack.
  Ghost Lets you pass to the other side. Not meant figuratively.
  Hydrocharge Increases wagon level by 2, but will require water and can overheat Wagons with this extension do not heat up if they are not operating. Applying multiple of this extension can cause the wagon to heat up faster.
  Supercharge Increases wagon level by 1
  Range-Extension Increases wagon range Range increased depends on the wagon type as well as wagon level.
  Speed-Boost Increases wagon speed Speed increased depends on the wagon type as well as wagon level.
  Stack-Boost Increases wagon stack size Increases both input and output stack sizes if the sizes aren't fixed.
  Time-Extension Increases wagon active time For wagons that actively consume resources, the fuel consumption rate is lowered.
  Key A shiny key that opens a door with many locks. Currently has no use in game