[robbies]

UE4 is not the most widely used game engine in the industry. That would be Unity by a wide margin.

If you are restricting to AAA, I’m not even sure if that holds. There are a good amount of big teams that use UE4, I think I’d go with Frostbite due to the sheer amount of titles that EA pushes out that are now based on Frostbite. It’s certainly more big games than UE4 is shipping. I’d probably put Ubisoft ahead of them too with their internal engines.

[prophesi]

It's difficult to measure game engine usage for AAA games since they can afford to

a) build their own internal engine

b) pay licensing fees to not disclose what engine they're using.

For overall game usage, however, I'd definitely say Unity is most used, with UE4 coming in second