Points are what you get for capturing territory, killing players, and destroying towers. WIP
There is an interesting tip, when you're in team mode, build your wall in your team's territory and you can get points. Because when the player that built it before, dies, and he loses all of his scores. His territory will be like a free space, you build in it, you get that points.
However, if your territory is so large and isn't divided into many lands like this pic:
Your points will be lost when some players in your team build a wall.