Andrew Kieschnick, better known as AndrewK, is a video game developer.
When the Dreamcast was first starting to be disassembled, AndrewK did his own disassembling work, contributing much of his research to the open source development library libdream.
Andrew's software was included in the DC Tonic demo CDs that were given out to the Dreamcast fans at E3 2000. DC Tonic has been well received and has even been reportedly mistaken for an actual commercial demo, though the developers were rushed for time in its production, and the tools used were not at a very high level of quality at the time.
AndrewK's titles on the disc were a demoscene demo called Burritro and an MP3 player.