Um, no AFAICT? Unless things have changed Unreal is no where near as interactive as Unity. Unity is an app (a game editor) designed to make games. Unreal is a game engine with an editor tacked on to make it editable. That difference in approach makes a huge difference in the experience of using each to make a game.

I'm sure you unity devs will laugh at this but in general Unity is designed to not crash. It's an app. Its document is a game. Unreal on the other hand is a game that assumes you have no bugs. By that I mean being a game it assumes the end goal is shipping code. It's not designed to be an editor so it not designed around being stable. It's designed around game code not editor code. If you want to edit code live requires you to use XCode or Visual Studio. If you make a mistake the game crashes taking down the editor (since that's running in the game) and everything with it.

This the kind of stuff that gets me to leave HN. Random people downvoting what are basically facts, at least they were as of last June

I have licenses to both Unity and Unreal and have personally shipped 17 commercial games and written their engines from C64 all the way through 360/PS3. It's not like I have no clue

And yes you can downvote this shit too but gees. Nothing I said above is false. Post some counter facts if you disagree.

Put a while(1) in one of your game scripts in unity and let me know how great it is

Yes, Unreal Engine 4 Editor has a live stage running within it that you can interact with in a very similar manner to Unity. I have worked with both tools and found them similar. The primary motivator for me to choose UE4 is that I always have the option to drop down to C++. I can implement game features or fundamentally change the engine and editor if I have a clear need.