Warzone 2100

this is classic! very easy at the beginning, the game gradually gets more and more complex, introducing new units and thus forcing player to come up with new tactics. one of the best free games for linux.

This is one of my all time top 3 favourite games for Linux (SOF & RTCW being the other too). I've come back to this game, time & again, over the years and it just keeps getting better. I also have the PS2 version, but it is no-where near as good as the Linux port. The support forum is excellent and the game videos have recently been made available to add the cut-away scenes which complete the game.

Warzone 2100 will always be in development (just like Linux) as the game format constantly allows for bigger and newer features to be implemented by the devs. Given enough time I can see this game becoming a "game of games". The latest stable release is very playable. Mods and maps are available as well as the ability for users to create their own. The computer AI is challenging in single player campaign (my preference).

Teaches by example some of the main principles of "The Art of War" while being; fun, addictive and challenging. The graphics, although simplistic, are pretty cool too. The game runs very well on older hardware and lower spec'ed machines as well as high end boxes.

10/10 ;)

looks like c&c, cool. but this one is under development.