SCI/FreeSCI
FreeSCI is a free software project that aims to develop a complete reimplementation of the proprietary adventure game interpreter SCI.
FreeSCI can decompress and load SCI0 resource files, load and link position-independant SCI scripts, execute SCI bytecode, display SCI0 pic, view, and cursor graphics, draw text according to information stored in the font resource, interpret SCI0 sound resources, and provide input events to the SCI bytecode.
In short, it can run SCI0 games, although it still has a few bugs.