Map information is when a faction decides to show how much land a faction has. The other thing is become protectorate, where a nation can decide to vassalize a weaker neighbour, and become their puppet. The next log will be about the city upgrading system. P.S: Make sure to send me some designs on what cities for each culture could look like.
The infdev screenshot is from turn 3, around the start of the game, where two nations try to get eachother’s map info. The other is from turn 193, where Benderia is trying to force Animaria into submission and become their vassal.