Hey folks!

A week of vibecoding and a 150k 16bit dos exe turned into portable SDL3 C99 code (public domain, CC0). The shadow.com source decompiled as C so the blitting algorithm can be easily studied.

The game itself is the Baldur's Gate 3 from 1991, so worth checking if you're into RPGs.

I have left compatibility with MSC 5.1 in case you still want to build it for DOS. But the SDL version comes with the proper digital sfx extracted from the Amiga release.

For this work I used local qwen3.8-flash-next (nvfp4 quant).

You can try the game online at https://nancygold.itch.io/shadow-sorcerer

Cheers!