Cube is the original game that started it all. Though it has been surpassed in almost every way by Cube 2, it is a game in its own right. Most importantly, it comes with over 100 (!) maps, most of which are not available in Cube 2, with extensive single and multi player content.
Cube is also smaller in every way, in download, in hardware requirements (runs well on older video cards!), and in source code (the absolutely tiny code base is a very easy start for those wishing to experiment).
If you want a touch of dynamism in a classic FPS game, this is the perfect way to go.
Requirements:
· OS: Windows XP/Vista