Start on any of the first three planets: Vulcanus, Gleba, or Fulgora. Choose your planet in the startup mod settings before starting a new game. Compatible with many modded planets!
Mods introducing new content into the game.
New places to build more factories.
Map generation and terrain modification.
factorio 2.1.20
The bug is that the tech shows up as available when you haven't unlocked all the prerequisites.