A Free Strategy and Board Game with Online Multiplayer and Single Player vs AI, as well as over 100 games and maps. It is open source, runs using Java (can run on Windows, Mac, etc.), and supports such features as user created content and games/maps, an AI,...

Unvanquished is a free, open-source first-person shooter combining real-time strategy elements with a futuristic, sci-fi setting. It is available for Windows, Linux, and Mac OS X. Features:• Two teams. Play as either the technologically advanced humans or ...

The Free Game "Domination" (In the past known as "Risk") can be played from up to six players, which can be played on the same computer or via LAN.You can choose between several maps and boards; the rules are the same as in the original game. To run the gam...

Zero-K is an open source RTS using the Spring engine. It aims to provide a dynamic massively multiplayer metagame built around a highly enjoyable, imaginative RTS core, as well as a compelling single-player experience. Problems installing?◦ Install Microsof...

S.W.I.N.E. is a real-time tactical strategy game in which you must carry out  extremely varied missions while taking advantage of the terrain and your  units’ special abilities. Your army’s abilities and strengths will  then develop over the c...

You start somewhere amidst an archipelago with nothing but a single ship and a handful of resources. Those need to suffice for you to found a rudimentary settlement.Soon, the first sailors will settle down in your city and demand a living. Can you manage th...

0 A.D.(pronounced "zero ey-dee") 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, fo...

The Battle for Wesnoth is a turn-based tactical strategy game with a high fantasy theme.Build up a great army, gradually turning raw recruits into hardened veterans. In later games, recall your toughest warriors and form a deadly host against whom none can ...

Subvein is a free multi-player action game. It has over 20 weapons, a strategic skills system, crazy vehicles and countless user-generated maps. It´s tactical, fast-paced and most importantly, fun!

SkyRider is a flight simulator for a new kind of flying, where you rely on your own power to pedal yourself in the sky. Not only do you need to master your skybike, you must also manage your body to last a whole race. Collect prizes during the race, to help...

Bitfighter is a free multi-player 2-D space combat game with Robotron-like controls. It's a team-based strategy game featuring retro vector graphics and customizable ships. It's fast, fun, and frenetic.

Conquer the whole galaxy in the free Spacegame FreeOrion. FreeOrion is a open source clone of the roundbased strategygame "Master of Orion". Like in the example you start with a small planet and you will have to conquer the whole galaxy in the end.Ready or ...

Freeciv is a multiplayer-strategygame, under the GNU general public license. It's similar to Civilization II®, released from Microprose®.Found cities, conquer lands, and develop your lands.On the publisher site you will find all informations, for the instal...

A fantastic 3D RTS with a Command and Conquer gameplay.The game has an easy and very good tutorial, but the controls are that easy that I could play the game without playing the tutorial first.A professional made game whereby you have to create a base. A co...