This is what I've been doing on the AGI and SCI game authoring scene.
AGI to SCI ConvertersOnly the sprite converter, VEW2VEW is in full working order right now.Other toolsIncludes ARVO and ARVO-XML. The AGI Reusable Variable Organiser (ARVO) generates "defines.txt" for an AGI game, relieving the programmer of the task of manually assigning machine-level numbers to variables and flags.
AGI/SCI Forumshome
AGI Studio
SCI Studio