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Caesar III cover art

InstallReimplementation

Caesar III

Impressions Games · 1998 · PC

Get it on GitHubHow to play

Doesn't play in a browser tab yet: it plays on your own device. Opens github.com in a new tab. Follow it to see on your home page when it comes out, or plays here.

On your device

Install

A build to download from the project and run on your device.

  • Julius

    By bvschaik3409 stars on its repository

    Releases

    ReimplementationWindowsmacOSLinuxAndroidSwitch

    Latest release v1.8.0, Jul 31, 2025Code last updated Sep 12, 2026License: AGPL-3.0

    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.

  • Augustus

    By Keriew2125 stars on its repository

    Releases

    ReimplementationWindowsmacOSLinuxAndroidSwitch

    Latest release v4.0.0, Dec 28, 2023Code last updated Oct 16, 2026License: AGPL-3.0

    How to play
    1. It needs the graphics and sounds of your own Caesar 3, patched to 1.0.1.0.
    2. Download it for your system from the table in its README: a release, or an unstable build.
    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: saves go there.
    5. It loads Caesar 3 and Julius saves, but its own saves open only in Augustus.
    6. Its manual, in English, French and other languages, explains every change.

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

From SubmitGame's list, read Oct 21, 2026, with releases, stars and licenses as each project's repository gives them. recomp.gg wrote some projects' steps from their own pages, as each says; the others' are the same for every project of a kind, and its own page has the details.

Under the hood: every project behind it, its license and code, how they connect, and who made them.

News

All news
  1. Release · Jul 31, 2025Julius v1.8.0, and 9 more since Jan 8, 2020
  2. Hacker NewsPost · Hacker News · Aug 24, 2024Julius: Open-source reimplementation of Caesar III
  3. Release · Dec 28, 2023Augustus v4.0.0, and 8 more since Jun 5, 2020
  4. Hacker NewsPost · Hacker News · Dec 2, 2022Julius: An open source re-implementation of Caesar III

About

Caesar III is part of Sierra's City Building Series and was released in October 1998. Cities in Caesar III try to accurately reflect the life of Roman citizens: the lowest plebians live in tents and shacks, while the richest patricians live in villas. Staple foods include wheat, fruits, vegetables, and pork, and wine is required for some festivals and houses. Citizens wander the streets in their various garbs and can tell the player their name and how they feel about the city. The city is viewed in a two-dimensional isometric view with a fixed magnification level and can be rotated ninety degrees. Access to services such as market goods, entertainment, hygiene, education, and taxation are represented by "walkers," people sent out from their buildings to patrol the streets. Any house that a walker passes is considered to have access to the services of the walker's building. All movements of goods and coverage of walkers are accurately reflected by citizens walking the streets: a player can watch a farm's crop progress, and when it's ready, a worker will push a full cart from the farm to a nearby warehouse or granary; then return with an empty cart. Background music is played, which varies according to the situation (gentle themes to begin with, war drums during times of conflict and triumphal music when the player nears the objective). Crowd noises supplement musical themes, the sounds of manufacturing and the clash of weapons at appropriate times.

Excerpt of the description on IGDB.

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