Mini empires using cityrpg as a base. Instead of baseplate "lots", the "lots" have been heavily sized down, into "plots" of land, which cost money to build. 4x4, 8x8, 12x12, 16x16. You can build with population bricks that give you more population the larger the brick you place, so people wont spam (such as a 1x1 plate will give 1 population, 1x1 brick will give 4 population etc)
Maybe you could buy upgrades that actually do things.
Warfare could be checks mixed with population, military, and technology vars.
So like a nation has 100 military, and 1000 civilians. It multiplies civilians by 0.5 and turns it into 500. The number is now 600. Multiply that by a technology var, for this nation it is level 3. So we multiply this tech var by 0.1 and add 1 to that, which turns into 1.3. Multiply that by the previous number, you get 780. This is the nation's base attack power, then multiply that by 0.2. It will add a random number to the total, between 0 and 156, which the second number was the results of the multiplication. So now it has a random chance to possibly succeed in that battle if the enemy is slightly better (only slightly).
Lots of math
