OpenSC2K – An Open Source Remake of SimCity 2000
Its very questionable to include the assets.  The bottom of the readme says:<p>> Includes assets and graphics extracted from the original SimCity 2000 Special Edition CD. These assets are NOT covered by the GNU General Public License used by this project and are copyright EA / Maxis. I'm including these assets in the hope that because the game has been made freely available at various points in time by EA, and because it's 24 years old as of publishing this project that no action will be taken. Long story short, please don't sue me! Long term, I plan to add functionality to extract assets from the original game files within this project.<p>The normal way for these open-source engines work is to insist that the users get the artwork from another source.