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 iron 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 2m for the first, +1m for each additional extension.
  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. See Water Capacity for details.
  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

Extension applicability

This table gives a summary of what extensions can be applied to each wagon.

Some extensions may have varying effects on different wagons. Please go to each individual wagon's page for details.

 
Storage-Pull
 
Storage-Push
 
Front-Pull
 
Auto-Drop
 
Magnet-Pick
 
Ghost
 
Hydrocharge
 
Supercharge
 
Range-Extension
 
Speed-Boost
 
Stack-Boost
 
Time-Extension
 
Key
  Crafter Wagon
  Storage Wagon
  Collector
  Conveyor-Belt-Transporter
  Mag-Tractor
  Cannon Cart
  Carriage Wagon
  Transformer Wagon
  Slot Machine Wagon
  Dynamite Wagon
  Miner Wagon
  Torpedo Wagon
  Turret Tower
  Brake Wagon
  Ghost Wagon
  Tank Wagon
  Supercharger Wagon
  Compactor Wagon
  Milk Wagon
  Piggybank
  Cartridge Toaster
  Wagon Printer
  Hexnut Tree Cart
  Task Wagon
  Versus Constructor Cart