What to watch for making custom tech trees?

[planetfall]

Planning to experiment with a custom tech tree in a scenario.

What do I need to watch out for?

What are good threads to read/check out first?

What are the debug shortcuts to add a tech to a civ? I'm thinking
of doing like conquests and having a tech tree favorite for some civs but not others.

thanks

PF

[Amesjustin]

Add a new tech that is not era-specific. Make it non-tradable. Give the civs you want to have the tech tree that tech to start. Then have the rest of that specific tech tree branch out from that tech.

You can use flavors to control AI tech choices, but the player could still research all techs regardless of flavor unless you do what I said above.