G.A.C is the now defunct Greek AGS Community. Famous for being the first company formed on the basis of nationality. Members include: Helm, Spyros, The Butcher, and later Danny. Responsible for games including The Book of Spells series, SOL, and Robert Redford Saves The Day.
It is currently long dead.
Not to be confused with GAC, the Graphical Adventure Creator, by Incentive Software.