My name is Andrew Jenner and I am the author of Digger Remastered and the maintainer of the website. You can email me with anything Digger related. You can also visit my blog if you're interested.
The Unix version is by Maxim Sobolev. The Red Hat GNU/Linux binary was built by Jeroen Nees.
Julian Brown is guilty of the RiscOS port - if want to contact him, write to me and I'll pass your message on.
David Down did the Protected Mode version. Any comments about that should be directed to him.
Marek Futrega created the Digger Java Applet.
Ori Brost made the BHole emulator.
LouiSe ported the SDL version to AmigaOS and MorphOS.