Rumors began bubbling up Tuesday that Google plans to acquire game maker Valve, developer of the “Half-Life” series and the Steam content distribution platform. The speculation began after a report cited “well-placed sources” claiming Google would very soon purchase Valve. The Internet search giant could be eying the Bellevue, Wash-based game maker in order to get its hands on the Steam content distribution technology. Google’s Jon Murchison told TechNewsWorld the company had no comment on the possible acquisition.