The source code can be obtained at Github.com.
From the repository:
"This repository contains the source code for Hovertank 3-D. The source code is designed for Borland C++ 2.0, but compiled fine with Borland C++ 3.1 at the time of this release. It is released under the GNU GPLv2. Please see COPYING for license details. This release does not affect the game data files. You will need to legally acquire the game data in order to use the exe built from this source code. "
I can't seem to get this to properly compile. I used the mounted version of TURBO C++ and after tinkering with directory setup in the compiler I did finally get an EXE to compile... It will not load properly.
I know that with Wolf3D the way the graphics are compiled caused issues. If anyone can give some information on this it would be helpful.