BuzzKenway :
agreed to answers above .
well known and best engines are :
CryEngine 3 [ Crysis 3 etc . ]
Frost Bite Engine 3 [ Battlefield 4 ]
Snowdrop engine [ Ubisoft's The Division ]
Unreal Engine [ many actually ]
Dunia Engine [ its CryEngine actually but modified still same] Far Cry 3 and op coming FARCRY 4
Hope that helps !!
That's the best list here so far.
However, FC3 uses the Dunia 2, not the original Dunia engine. But yeah, great engine. I wouldn't hesitate to call it one of the best, considering it has volumetric wind fully integrated, which affects animations, AI, and ofc the proprietary fire spread.
I might list the Anvil Engine from AC3 and Black Flag, but the thing is, I don't know if how poorly those games run is due to the engine or simply due to the developers themselves.
Also, if someone lists the "Creation Engine" *cough* Gamebryo from 2002 *cough* I'm going to be very irritated.