Nope not yet man
No, Rockstar games don't release demos for games.
GTA 5 will be released on PC on January 27, 2015. The release date is postponed because Rockstar Games wanted to make the HD remastered edition of GTA 5 on consoles.
Rockstar games corporation have invented GTA San andreas. Their distributors are rockstar north. They had earned US $25 million only from san andreas.
C:\Program Files (x86)\Rockstar Games\GTA San Andreas
It is not a new game just a download developed by Rockstar Games
Rockstar Games
Rockstar Games was created in 1998.
Rockstar Games is owned by Take-Two Interactive. I believe that Take-Two Interactive founded Rockstar Games in 1998.
As of March 9, 2011 the main focus of Rockstar Games is Grand Theft Auto V. There has been no info for GTA:SAS for PS2 .
Rockstar games has produced some of the most popular video games in recent years, such as Grand Theft Auto IV, Red Dead Redemption, Grand Theft Auto: San Andreas, and many others. The Grand Theft Auto series has sold over 125 million copies.
Rockstar Games Social Club was created in 2008.
Rockstar Games presents Table Tennis happened in 360.