UniWar is described as 'Turn-based strategy game where players battle it out on the field with units of differents races, building bases and using the terrain to overcome their opponents towards victory. Several modes are available along with many maps to play' and is an game in the games category. There are more than 10 games similar to UniWar for a variety of platforms, including Windows, Linux, Android, iPhone and Mac apps. The best UniWar alternative is Civilization. It's not free, so if you're looking for a free alternative, you could try The Battle for Wesnoth or Warzone 2100. Other UniWar like games are HUMANKIND, Imperial Domination, TripleA and Earth.
It is pretty much like uniwar with different strength parameters and a square grid instead of a hex grid