Originally Posted by |MaguS|
You all know that the reason they are doing this is because they are gonna announce a retail better version of it, right?
Valve never does things out of the kindness of their hearts.
Itīd be a strange move by a company to give things away left and right, for sure.
But where does releasing the source code fit into that theory?
Maybe selling campaigns and expansion DLC stuff, but with the source code and the tools out there, you get the Oblivion Horse armor situation where modders can just replicate whatever they do for free.
Infact, back in the day when it was called Alien Swarm: Infested and was still under the Black Cat name, they said it would be a free mod for HL2 owners and a standalone game purchase for those who didnt own HL2. (ie you pay for a HL2 engine license without the HL2 game content, I suppose, like they did with the retail Counter-strike 1.6 back when).
Chances are the Source Mod was nearly done (Alien Swarm: Infested was announced as a Source version of the UT2K4 mod even before HL2 was released as I recall), and they just let the crew put the finish on it and release it as was planned before they started work at Valve.
So it wont have been any real cost of development for valve as such.