Games - GAC (340 results)

The Graphic Adventure Creator was published by Incentive Software on several platforms. It was initially developed by Sean Ellis for the Amstrad CPC and then ported to many of the popular 8-bit machines. The initial inspiration for the system was the Trevor Toms adventure system.
It was subsequently updated to GAC+, which allowed for multi-load adventures. However, few games were released in this format. The reason was probably in part due to the fact that the new system didn't allow for single rooms or game parts to be loaded into memory, so the memory filled up very quickly.

A text-only variant called The Adventure Creator was released for the BBC and Electron. Only a couple of games seem to have been produced using the "AC": Plane Crash and Quest for the Pendragon; the game Alien Jailbreak was based on a partially completed Adventure Creator game.

Ellis later developed the GAC tool further on Atari ST as STAC.

Most games can be played on modern systems with the grackle interpreter. Kien Vincent has produced GACPlayer; a text-only interpreter for Raspberry Pi and Linux, which can run Spectrum, Amstrad CPC and C64 snapshots.

Sean's notes on the system - as well as his annotated source code - can be found here.