Build your factory as a Spidertron from the start! Instead of unlocking better weapons and armor, unlock upgrades to yourself.
Mods introducing new content into the game.
Transportation of the player, be it vehicles or teleporters.
New ways to deal with enemies, be it attack or defense.
I have reserved some slots (mouse wheel click) in the spidertron trunk, and when entering/exiting a train, these become unreserved.
Thanks for the report. The inventory transfers will be made much more robust in the next version, and hopefully this will be possible to keep as well.
Fixed in 1.6.3
