The author introduces the topic of old Sierra games and their inner lives, mentioning that the brilliant script decompiler written by Phil Fortier for SCI Companion was instrumental in understanding these games. However, the author wanted to write their own decompiler and share it with the community. After obtaining as many games and variants as possible, the author decompiled and annotated every Sierra SCI game, and practically every version, making the results available on GitHub. The author breaks down Sierra code into three categories: game scripts, system scripts, and the interpreter, providing insight into each. The author also discusses the influence of Smalltalk on SCI Script and the challenges of reverse engineering the games.
https://www.benshoof.org/blog/sci-scripts