Ion Storm, L. P. - Mobygames

Ion Storm was a game developer based in Texas, USA. It was founded on November 15, 1996 in Dallas by John Romero and Tom Hall, both former employees of id Software. In 1997 Warren Spector was asked to lead a company branch in Austin. Game development in the Dallas office was notoriously plagued by delays, internal conflicts, and controversial ad campaigns, all of which marked the release of John Romero's Daikatana (2000).

Romero and Hall left the company shortly after the production of Anachronox (2001). The last company division in Austin was closed by Eidos Interactive in 2005 due to financial troubles.