The given site is a site of a command of developers.
Therefore we have source codes on all the presented games.
The prices for source codes of games from 50 $ up to 8000 $ for one source code of game.
If you buy some source codes that the price will be lowered.
What is the source code?
Source code of game is a file with which you by means of program Adobe CS3, CS4, CS5, CS6, CC