>>3156750Build can do a lot more complex geometry and manipulation thereof because it doesn't use a bsp. But AFAIK the mod tools for it are worse than for zdoom and the duke source code is supposedly a bitch to work with.
What I'm longing for in the port department is either
A) Kaiser retools one of his engines for doom with all the glorious scripting and GL features intact
B) someone writes a doom wad/pk3 reader for UE4 or unity.