Just saw this today and hadnt heard of it before tehn , dont know if its common knowlege or not, Loook very cool.
Remake of catacombs done in yeti3D
Hope its still active
You can't rightfully petition about stuff like that...
It is his choice whehter he wants to continue it or not...
or whether he will give out the source code for somebody else who has the time...
Im not pertitioning, i agree that its the developers choice what to do with hes own software, but i dont see any reason why he wouldnt want to se his work finished either by himelf or another skilled programmer.