Develop GDC announced that more than 26,000 games industry professionals were in San Francisco for last week's Game Developers Conference hitting an all time record high.
GDC 2015 announced some big news with Epic Games and Unreal Engine 4 becoming free to all, and Unity 5 launching. In addition Vale announced their Source 2 engine.
Valve hit the virtual reality scene with HTC Vive, and Project Morpheus release some updates, and AMD has entered into the race.
You can get an entire list over at Develop Online of all topics covered.