The Gamecube version is inferior to the original game in many ways, but the 2004 PC port has even more issues, with more bugs and even worse lighting, texture and sound quality.
Although Sonic Adventure DX is commonly referred to as an “enhanced port”, it has some serious downgrades from the original game in terms of lighting, special effects and texture quality, as well as bugs that didn’t exist in the Dreamcast version. This blog is dedicated to comparing Sonic Adventure DX with the original Dreamcast version. The second PC port is available through Steam and is the most accessible version of the game at the moment. There is also another PC version of Sonic Adventure DX, which is based on the Dreamcast Collection port. In 2010-2011 it was also ported to Sony Playstation 3 and Microsoft Xbox 360 as part of a bundle called Dreamcast Collection. In 2003-2004 the game was ported to Nintendo Gamecube and PC, where it’s known as Sonic Adventure DX: Director’s Cut. Sonic Adventure is a game originally released for SEGA Dreamcast back in 1998-1999.
Dreamcastify is a blog about Sonic Adventure DX downgrades.
