Before Unreal Engine 4, it was actually easier to build games with Unreal, because you had a platform to build off of with modding as a starting point. In UE4,

Before Unreal Engine 4, it was actually easier to build games with Unreal, because you had a platform to build off of with modding as a starting point. In UE4, you do _everything_ yourself; this isn't an exaggeration. A brief look at Unreal Tournament results in viewing an abandoned project. Working with the engine feels just the same.