
The idea with Augustus is to enhance Julius for Caesar III with customized gameplay, UI enhancements and much more (rather than sticking to being accurate to the original).

It differs from Julius in quite a lot of ways too, and it's actually a fork of it so another developer took the Julius and built upon it to make something different.

Much like Julius, you need the game data files for Caesar III with this being a free and open source game engine only.

To play the classic city-builder Caesar III on modern platforms there is the FOSS game engine Julius, however there's also a more advanced version called Augustus that had a major new release.
