Blimps, airships, aerostats, whatever you wanna call them...
Mods introducing new content into the game.
Transportation of the player, be it vehicles or teleporters.
When you complete your to do list, do you plan on doing another mod? What is that mod called?
Thank you.
-Z
I can't tell you for sure. I do not have much time now. I will, however, try to keep the mod up to date with the latest version of Factorio. I'm glad that you enjoy it!