Hey besinblack!
I played the tutorial and the first campaign level. I will play more (I love those puzzle-adjacent board games :)), but I want to highlight the immediate thing that got me confused first.
In the tutorial, when I place the last sector piece to my cell, it spreads out to neighboring cells, including enemy cells. In tutorial, all the places where my sectors spread to were empty — so I assumed this is a rule (yep, new players do that :D). I played the campaign level with this assumption, and ofc got obliterated by the enemy, who has shown me that they can freely spread into my cells, no matter if those cells have a filled sector facing the enemy cell.
That is, of course, on me — but maybe it would make sense to add en explicit demo of this case to the tutorial?
Cheers!