"An ugly court action is underway and it involves a pair of video game titans.
On Tuesday Valve filed suit against Activision Blizzard in U.S. District Court in Seattle. The suit alleges that Activision refused to honor an agreement to abide by an arbitrator's April 6th award decision involving a 2002 dispute over royalties.
The arbitrator in that case awarded Valve $2,391,932, an amount that Valve says is less than it sought, but which it will accept because both parties agreed to be bound by the arbitration process.
Activision, however, challenged the award, claiming that Valve had been overpaid by $424,136 in years past."