Handbook description

Fill the piggybank with wood or iron to collect bolts!

Strategy

Piggybank is a special wagon that can only be obtained at the ??? Station of Monorail Meadows Biome.

Piggybank is a must have for your run due to the amount of bolts it can generate.

It is most efficient to upgrade the piggybank to level 4, then apply two   supercharge extensions onto the piggybank. The sooner you upgrade the piggybank, the more bolts it can generate for you in your run.

It is a very bad idea to apply the   storage-pull extension on the piggybank as it can quickly drain your stack of resources. Instead, you can put   magnet-pick extension on the piggybank. This way, you can start pilling up resources near the station at the end of the level, and the piggybank will automatically consume them all on the next level if the resource aren't used.

Level States

Needed Commodities For A Bolt Max Inserts Per Station Input Stack Size
LVL 1 30 30 3
LVL 2 26 30 4
LVL 3 22 30 5
LVL 4 18 30 7
LVL 5 14 30 8
LVL 6 10 30 9
LVL 6+ 9 30 10

Extension effects

Name Effect
  Storage-Pull  
  Storage-Push  
  Front-Pull  
  Auto-Drop  
  Magnet-Pick   The Magnet Range is increased by 1m for extra magnet. (2 tiles base range)
  Ghost  
  Hydrocharge  
  Supercharge  
  Range-Extension  
  Speed-Boost  
  Stack-Boost  
  Time-Extension  
  Key   Does nothing