Note that before that, Lucasarts had a custom execution environment for their games, for portability reasons (SCUMM). Grim Fandango uses GrimE, sort of a successor to that.

I would assume that LUA was a way to move towards something common as a scripting language in GrimE.

http://en.wikipedia.org/wiki/SCUMM http://en.wikipedia.org/wiki/LucasArts_adventure_games#3D_gr...