BSP Level Editor (Similar to Hammer)

Hello! I’m Eleros and I am a mapper/modder who uses the Source Engine and I love the simplicity of the Hammer Editor. I am currently looking for a plugin/asset that allows you to create and edit meshes similar to the Hammer Editor. If you know something like this or similar any suggestions would be appreciated. I am looking for one that is for 4.13.2 and is free or has a free trial.

The HammUEr plugin lets you import levels you designed with Hammer into UE4, and I hear it is very good. Also ProBuilder has a beta version for Unreal Engine, but I don’t know how well this works. And, of course, Epic’s new in-engine geometry editor is upcoming, but that will probably take some time before it lands.

Ah cool, I’ll check out HammUEr!