recomp.gg
Caesar III
Caesar III cover art

ReimplementationDownload

Julius

Brings back Caesar III · By bvschaik

Get it on GitHubHow to play

Plays on your own device, not in a browser tab. Opens github.com in a new tab.

Ways to play

  • Download

    github.com

    Get it on GitHub

    WindowsmacOSLinuxAndroidSwitch

    How to play
    1. It needs the original Caesar 3 files: your own copy, from GOG, Steam or the CD-ROM.
    2. Download it for your system from the release its README links, or install it from Google Play on Android.
    3. Copy it into your Caesar 3 folder, or run it from a folder of its own and point it to Caesar 3.
    4. You need permission to write in the game folder, where saves go, and your game must be patched to 1.0.1.0: Julius tells you if it is not.
    5. Its saves and the original's are interchangeable; for gameplay changes, its README points to Augustus.

    Written by recomp.gg from its README, read Oct 12, 2026.

Details

What
A new engine written from scratch that runs the original game's data.
Code
github.com/bvschaik/julius3.4K stars on its repositoryLast updated Sep 12, 2026
License
AGPL-3.0
Release
v1.8.0, Jul 31, 2025

Its game

News

All news
  1. Release · Jul 31, 2025v1.8.0
  2. Hacker NewsPost · Hacker News · Aug 24, 2024Julius: Open-source reimplementation of Caesar III
  3. Hacker NewsPost · Hacker News · Dec 2, 2022Julius: An open source re-implementation of Caesar III
  4. Release · Oct 14, 2021v1.7.0

Related projects

Forked into
Augustus

From recomp.gg's How to play, read Oct 13, 2026, SubmitGame's list, read Oct 11, 2026, GitHub's forks, read Oct 15, 2026, the GitHub API, read Oct 21, 2026 and the GitHub API, read Oct 11, 2026. Where How to play names the page it was written from, recomp.gg wrote the steps from it; elsewhere they are the ones every way of its kind shares, and the project's repository or site has the rest.