Continents is a turn based strategy game that is unique through the fact that it was written completely in Java. Therefore, it will run in any operating system that supports Java. The world is created using a random generator, so each time you want to play a game you will have to treat it differently as the map will bring new challenges.
Personal development is unique for every unit that you control and this will make you feel that the game is huge, despite its small size. The research is non-linear, along with the technology trees and upgrades for the troops. Overall, Continents provides a great TBS experience.