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.
SEO: Vulcanus start, Gleba start, Fulgora start
Found that there is a bug in the tech tree, where you can research Chemical science before researching its prerequisite item, engine-unit, as engine-unit was NOT marked as a prerequisite for Chemical science.
Huh, you're right. It probably was an implicit prerequisite that got removed due to changes in the oil tech progression.
Sorry I missed this, not sure how that happened because I don't remember seeing this post. Thanks for the report, fixed in 1.0.5
