Grackle 0.4 beta, by David Lodge. A dumper and player for adventures written using the Graphic Adventure Creator. It supports GAC games from the Spectrum, Amstrad CPC and BBC B Micro. Archive includes C source and an MS-DOS executable.
UnGAC version 0.1, by John Elliott. UnGAC reads a snapshot of a Spectrum adventure game created with Incentive's Graphic Adventure Creator and produces text listings of the game data. Archive includes C source, executables for Win32, CP/M, and DOS, and documentation.