The goal of this project is to provide a documented, open-source version of Counter-Strike 1.5. 

Counter-Strike, being one of the most popular multiplayer games to exist, surprisingly hasn't had a free-software implementation done until now.

Five cool random things you can do with this:

1. Play/Host CS on virtually every platform.
2. Customize the game to whatever extent you like.
3. Create entirely new weapons!
4. Create completely new and refreshing gamemodes!
5. Have a guarantee to be able to play it 20 years into the future!