Augustus is an open source re-implementation of Caesar III with changes to gameplay.

The aim of this project is to provide enhanced, customizable gameplay to Caesar 3 using project Julius UI enhancements.
<ul><li>Support for widescreen resolutions</li><li>Windowed mode support for 32-bit desktops</li><li>Several small in-game quality of life improvements</li><li>Zoom controls</li></ul><ul><li>Roadblocks</li><li>Market special orders</li><li>Partial warehouse storage</li><li>Increased game limits</li></ul>
Augustus requires the original assets (graphics, sounds, etc) from Caesar 3 to run. It optionally supports the high-quality MP3 files once provided on the Sierra website.