The CPL today announced their workshop schedule for the upcoming CPL Winter event, which shows some interesting information about Condition Zero. This single-player Counter-Strike will be shown at a workshop, but who is hosting this workshop? Ritual Entertainment, and not Gearbox Software. Through various sources we learned that Ritual (also working on Elite Force 2) took over development of the game back in August. It's not known if they started from scratch or are working with the content build by Gearbox. Randy Pitchford & Co will still be at the CPL, showing the PC port of Halo. Ritual is actually the third company to work on Condition Zero, as Rogue Entertainment briefly worked on it as well before Gearbox took over.

Update: Valve sends along confirmation that Ritual Entertainment is indeed the new developer for Condition Zero.

Counter-Strike: Condition Zero Development Moves to Ritual
The primary development of Counter-Strike: Condition Zero (CS:CZ) has moved to Ritual Entertainment. Counter-Strike: Condition Zero introduces single player gaming to the world's #1 online action game. Representatives from Ritual and Valve will be presenting the latest on CS:CZ during a seminar at the The CPL's upcoming Counter-Strike Championships in Dallas, Texas.

In addition to the quote from Valve Software, we have gotten this from Gearbox's Randy Pitchford:

Gearbox Software suspended development of Counter-Strike: Condition Zero in July of 2002. Counter-Strike: Condition Zero introduces single player gaming to the world's #1 online action game. Valve Software has overseen development since July. Gearbox is aware of and endorses Ritual Entertainment's involvement. After developing several Half-Life games, Counter-Strike: Condition Zero, Tony Hawk Pro Skater 3 and James Bond 007: Nightfire, Gearbox Software is refocusing its efforts on future technology and more interesting and innovative game play. Gearbox Software will be discussing Halo: Combat Evolved for the PC and our vision for the future of interactive entertainment at The CPL's December 2002 event in Dallas, Texas.