Empires!!

0 A.D. is a free, open-source, cross-platform real-time strategy (RTS) game of ancient warfare. In short, it is a historically-based war/economy game that allows players to relive or rewrite the history of Western civilizations, focusing on the years between 500 B.C. and 500 A.D. The project is highly ambitious, involving state-of-the-art 3D graphics, detailed artwork, sound, and a flexible and powerful custom-built game engine.

Set a generation before the events of the original Warcraft began, Warcraft II is a real-time strategy game by Blizzard Entertainment. Cunning, sinister, and seemingly unstoppable, the demonic Burning Legion prepare to launch their long-awaited assault on the mortal world. Survival is a matter of strategy, as the Reign of Chaos begins…

In this city-building strategy game, you control a group of exiled travelers who decide to restart their lives in a new land. They have only the clothes on their backs and a cart filled with supplies from their homeland.

Age of Mythology is based on building towns, gathering resources, creating armies, and ultimately destroying enemy units and buildings. In this way, players are able to defeat and conquer rival towns and civilizations. Players advance their tribe through four "Ages": starting in the Archaic Age, the player may upgrade to the Classical Age, the Heroic Age, and finally, the Mythic Age. Each upgrade to a higher Age unlocks new units and technologies for the player, which strengthens their settlement. »

CaesarIA is an open source remake of Caesar III game released by Impressions Games in 1998, it aims to expand the possibilities of the classical city-building simulators and to add new features showing the city life. Now the game work with Windows, Linux, Mac, Haiku and Android.

Stonehearth is a game about exploration and survival in an epic fantasy setting. Your job is to help a small group of settlers survive and carve out a place for themselves in a hostile land. You’ll need to establish a food supply, build shelter, defend your people, and find a way to grow and expand, facing challenges at every step.

Free (as in freedom) open-source RTS http://alternativeto.net/software/age-of-empires-iii/ engine. Written from scratch in C++14 and Python, using OpenGL + GLSL.

Bos Wars (formerly known as Battle of Survival) is a futuristic real time strategy game (RTS). It is possible to play against human opponents over LAN, internet, or against the computer.

As a provincial governor charged with spreading the glory of Rome your mission is clear – build cities, foster trade and industry, make money. How you accomplish this is up to you. Gain wealth and power, make a career out of pleasing the emperor, battle barbarians and repel invaders, or concentrate on building the next Eternal City. Fail and you'll end up as lunch for the lions. Prove your strength of mind and spirit and you just might be crowned Caesar!

Here comes the Golden Age of Civilizations, a semi turn-based MMO strategy game, inspired by but not following the classic games of the genre, such as Age of Empires, Civilization and Rise of Nations; mixed up with MMO capability and flavored with the best parts of other good online games.