Let's suppose you have two players: one playing Human, where things are supposed to be about sneaking around giving the AI bug-bites until it collapses, and the other playing Spire, where things are supposed to be about having a stand-up-and-beat-on-each-other's-faces slugfest of a war.
How is that supposed to work in a single game?
Will there be a system for the Human player to sneak around the sides of the galaxy to shank the AI's ankles, or will it just be a spire game plus 10% of an extra player and 10% extra AI response?