It's an open source replacement for RPG_RT.exe...? The description can tell you more.

It's mostly to have an engine that isn't all screwy with the damage calculations, broken speed, and thousands of Emptybrain's oversights like reflect tennis. There's hundreds of things this engine will do, and it's also open source so you can edit it.

You should say that to J-Man, I'm only rendering them.

Reminds me, gotta credit them in the game profile as well as in the desc.