Note: The code quality of this right now is very poor, rushing through things as this is just a hobby project.
freeking is an open source reimplementation of Kingpin: Life of Crime written in modern C++ and modern OpenGL.
You still need to have the original game assets in order to use this.
freeking is released as open source software under the GPL v3 license, see the LICENSE file in the project root for the full license text.