Unciv is described as 'UnCiv offers a streamlined, gameplay-focused reimplementation of the hugely popular Civilization that's ad-free, open-source and built for speed. The game loads and plays very fast, offering a balanced design that lets players focus on' and is a Turn Based game in the games category. There are more than 10 games similar to Unciv for a variety of platforms, including Web-based, Windows, Linux, Mac and Android apps. The best Unciv alternative is Civilization. It's not free, so if you're looking for a free alternative, you could try FreeCiv or OpenFront. Other Unciv like games are Tiny Attack, DomiNations, World of Empires and Power of Planets - Earth.
Turn-based 4X (explore, expand, exploit, and exterminate) strategy game series where players build a thriving civilization through ages of advancements.
Freeciv is an open-source, turn-based strategy game based on Civilization II. Inspired by the history of human civilization, the game commences in prehistory and your mission is to lead your tribe from the stone age to the space age...
Tiny Attack is a free-to-play, turn-based strategy game that can be played in any web browser, inspired by games like Advance Wars and Weewar.
From legendary game designer Brian Reynolds (Civilization II, Rise of Nations), DomiNations is an epic new strategy game of exploration, advancement, and conquest. Lead your Nation to ultimate victory throughout all of human history – from the Stone Age to the Space Age!
Play in a randomly generated world or make your own with the map editor. Go to war with 26 different civilisation with their own unique abilities and fight them with 54 different units ranging from primitive warriors to state of the art mechs.
In the Power of Planets - Earth, achieving success requires a balance between economic expansion, military strength, and technological development.
Statebuilder is a 4X strategy game in a historical setting where players direct an empire from the early dawn of civilization to modern times. The browser-based game is built to be fast but attractive and highly playable with an advanced AI that plays just like real players...
Freeciv21 is a free open source turn-based empire-building 4x strategy game, in which each player becomes the leader of a civilization. You compete against several opponents to build cities and use them to support a military and an economy.
GenTown is a game about guiding civilization - indirectly, through a series of prompts. Inhabitants ask for your input, but have affairs of their own. The simulation includes diplomacy, war, trade, economy, revolutions, disasters, and more.
United States
Pro: It is also Free and Open Source. Also inspired by the original "Civilization". Also works on Linux.
Con: FreeCiv can not be played on Android.