Sonic Adventure Dx : Directors Cut for pc by SEGA.
The PC version was at first released only in Japan and Europe, but later saw a limited North American release. Sonic Adventure DX includes a mission mode, which included 60 missions to complete throughout the adventure fields and action stages.
System Requirements:
Minimum CPU Class Required: Pentium III
Minimum OS Class Required: Windows 98
Minimum RAM Required: 128 MB
Minimum CD-ROM Drive Speed Required: 12X
Drivers/APIs Supported: DirectX 9.0a