Source is an enhanced version of one of the most cherished of
production in recent years. The game was initially only be extended
modem to the first part of the famous Half-Life'a. After the huge
success of this programme was decided, inter alia, on a boxed edition
of Counter-Strike'a, this game doczekała are also many other versions,
inter alia, for the Xbox. The product is primarily a visual changes,
the game mechanics remained largely unchanged.