Tips eminentdomain

Base Game

Take the time to learn the Base Game before you add in the Escalation expansion.

Pick either Warfare of Colonise for taking control of planets, don't try to use both.

Use the Research Action to remove the cards you don't plan on using. If you ever discard a card at the end of your round, ask yourself if you even want it in your deck.

Survey early to find planets which complement each other.

Try to get 3 planets of the same kind and push for the level 3 technology (7 research icons). These technologies give you game breaking abilities.

Remember that the planets don't have the level 1 technology that should match with them (Fertile does not have Improved Colonise, Advanced does not have Advanced Research and Metallic does not have Advanced Warfare)

Planets with a Colony symbol are a permanent discount to all colonisation costs instead of an extra icon when the role is chosen.

Planets which increase hand size will give you a lot more options each turn.

Keep an eye on how many cards are left in each role; if you're ahead consider taking a less efficient role to finish the game faster.

Escalation Expansion

Annex can really mess with colonisers.

You can buy research with fighters, destroyers and battlecruisers. If you Warfare, you can get game end tech without needing to lead Research roles.

Diverse Planets are now an option, especially with Oversight Committee consider pushing for one-of-each