System Shock 2 from Looking Glass Studios.  On CD-ROM; for Windows 95 or 98.  See photos for details on required equipment.  Made in 1999.

Box measures 9.5" x 7.5" x 1.5" and weigh 8.2 ounces.  Lightly used. 

Stored in a climate-controlled, smoke-free home.  Shipment by USPS Ground Advantage Mail.