Siegler moved to New Jersey in 1966 and lived there until the age of four, after which he moved to Philadelphia, Pennsylvania. He started college at Temple University in 1983 but was dismissed after one year, at which point he started working for an auto parts warehouse in Philadelphia. Prior to 1992, he also worked at a microfiche company and Bell Atlantic Business Systems Services, then a computer repair department of Bell Atlantic.
In December 1992, Siegler moved to Garland, Texas to work for Apogee Software. There, he creates the installers for the company's various computer games, and writes all the games' technical support documents. He is also responsible for making the games' gold master copies, and taking care of various other tasks in the office. He has worked as a level designer for Rise of the Triad and its expansion pack Extreme Rise of the Triad, is the voice of Duke Nukem in Duke Nukem II's intro sequence, as well as the voice of the Dopefish in its Wacky Wheels Easter egg appearance.
Siegler is also the webmaster of Black-Sabbath.com, a fansite dedicated to Black Sabbath. The site also hosts forums dedicated to the band. The height of these forums' popularity came in August 2005, after a now-infamous incident where Sharon Osbourne sabotaged an Iron Maiden performance at Ozzfest 2005.
- Fnord Joe Siegler's personal site
- Joe Siegler's bio page on 3D Realms
- Siegler's profile from MobyGames
- The Official Dopefish Home Page aka The Well of Wishes
- Black Sabbath Online Joe Siegler's Black Sabbath Fansite