Anything I would critique I'm pretty sure is due to the time constraints of being in a game jam and nothing with the game itself. Basically you can expand cities infinitely without consequence and the only research you can do is the building research, yeah? I'm a big fan of Civilization and other 4x games, so I'm certainly interested in a smaller, byte sized game that doesn't take 8-12 hours to finish map (even though I love the long games, too).