Rumours are circulating that Korean companies Nexon and NCsoft are actively trying to purchase Valve.
The report on Venturebeat states that Korean publication Joongang News are claiming that the companies met in Hawaii on September 26 to discuss a possible merger.
Given Valve co-owner Gabe Newell's previous reluctance to sell, you can file this one away under speculation for now. If there is anything to the rumours, we'll no doubt hear more in the coming weeks.