This is the new editor. It is not finished yet. But you get the idea where the developement is heading. You can now make a simple escape the room game. Or a maze game. Now includes a second example world (not finished yet).
Needs OpenAL. You can download this below.

Filesize: ~1.8 MB

The OpenAL installer for Windows will install the openal32.dll, enabling support for core OpenAL operations as well as extensions such as EAX. The installer supports any 32-bit version of Windows.

You need to go to Games -> Developement Tools -> Open AL -> OpenAL Installer for Windows.