Posts tagged co-operative-initiative 
Payday dev collaborating with Valve on Left 4 Dead 'co-operative initiative'
Payday: The Heist studio Overkill Software and Valve Software are working on ... something together. What that something is remains to be seen, as Overkill game director Ulf Andersson only described the collaboration as a "co-operative initiative" between the two companies. We do know that it'll in...
