Grand Theft Auto: the Trilogy [Mac Download] $11.99
Grand Theft Auto III, GTA San Andreas, GTA Vice City for Mac on sale for limited time.
For Intel Mac with OS X 10.5 Leopard, OS X 10.6 Snow Leopard. Released in 2010. Should work on 10.7 Lion. Grand Theft Auto 3 got good reviews on the Mac App Store.