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Caesar III

From PCGamingWiki, the wiki about fixing PC games
Caesar III
Caesar III cover
Impressions Games
Retail Sierra On-Line
Digital Activision
Re-release Sold Out Software
Release dates
Windows October 1998
Mac OS (Classic) 1999
Monetization One-time game purchase
Modes Singleplayer
Pacing Real-time
Perspectives Bird's-eye view, Isometric
Controls Point and select
Genres Building
Themes Egypt, Europe, Classical
Series Caesar
Caesar III on HowLongToBeat
Caesar III on IGDB
Caesar III guide on StrategyWiki
Caesar III on MobyGames
Caesar III on Wikipedia
Subseries of City Building (Sierra)
Caesar 1992
Caesar II 1995
Caesar III 1998
Caesar IV 2006

Caesar III is a singleplayer bird's-eye view and isometric building game in the Caesar series.

General information

Caesar 3 Heaven - A fan site for the game Community Discussions for game series Support Page
Steam Community Discussions


Source DRM Notes Keys OS
Disc check (requires the CD/DVD in the drive to play)
Mac OS
Icon overlay.png
A free demo version is available from GameFront.

Essential improvements


Patch version can be found here.
To install, simply drag and drop the contains of the archive over the original installation files

Skip intro videos

Instructions[citation needed]
  1. Go to <path-to-game>\smk\
  2. Delete or rename CREDITS.SMK, intro.smk, and Logo.smk

Julius / Augustus

Both support Windows, OS X and Linux, and are open-source projects.
Julius is an open source re-implementation of Caesar III based on SDL2. It does not fix some of the issues presented in the game itself, but it brings in a 32-bit windowed mode support and widescreen support. The saved games from the original game are compatible with this software.
Augustus is a fork of Julius which brings several gameplay improvements and changes, such as roadblocks (akin to those in later City Building series games), global labor pool, increased limits and zoom functionality, among other things. The original game can not read Augustus saved games.

Game data

Configuration file(s) location

System Location
Windows <path-to-game>\[Note 1]
Mac OS (Classic)
Steam Play (Linux) <Steam-folder>/steamapps/compatdata/517790/pfx/[Note 2]

Save game data location

System Location
Windows <path-to-game>\*.sav[Note 1]
Mac OS (Classic)
Steam Play (Linux) <Steam-folder>/steamapps/compatdata/517790/pfx/[Note 2]

Save game cloud syncing

System Native Notes
GOG Galaxy
Steam Cloud


In-game video settings.
In-game video settings.


Change color depth[1]
  1. To play the game in Windowed mode, you have to run the game in 16-bit colour.
    • For Windows 8 and newer, enable the following compatibility settings for the C3.exe file (located in <path-to-game>: Reduced color mode (16-bit color).
    • For Windows Vista and 7, change the colour mode through the Screen resolution settings in the Control Panel.
    • For Windows XP, change the colour mode through the Display settings in the Control Panel.


Keyboard and mouse State Notes
See the glossary page for potential workarounds.
Mouse acceleration
Mouse sensitivity
Mouse input in menus
Mouse Y-axis inversion
Controller support


In-game audio settings.
In-game audio settings.

Audio feature State Notes
Separate volume controls
Music, Speech, Sound effects and City sounds
Surround sound
Closed captions
Mute on focus lost
Royalty free audio


Language UI Audio Sub Notes
Separate UK and US versions.
Simplified Chinese
Retail only.
Fan translation.
Dubbing, Interface and subtitles without broken fonts.
Retail only.
Retail only; download for digital releases.
Retail only.
Retail only.
Retail only. Details
Brazilian Portuguese
Retail only;[2] download for digital releases
Retail only.
Retail only.
Retail only.

Issues fixed

Installation issues

Run setup.exe in compatibility mode for Windows 98 / ME.[citation needed]

Steam overlay not working

Use dgVoodoo 2
  1. Download the latest version and unpack the archive.
  2. Go to MS\x86 folder and copy ddraw.dll to the game directory.
Use Julius or Augustus]
  1. Download latest release version and unpack archive.
  2. Rename julius.exe to c3.exe and copy all files to your game directory.
  3. Steam overlay will now work without any problems.

Game speed/map scroll rate issue

Set the slider in-game[citation needed]

While in-game, press options and press speed option and move the game speed slider to adjust the game speed or scroll rate slider to adjust the scroll speed.

Music loops and narration repeats

Use IndirectSound[3]
  1. Download the latest version of IndirectSound
  2. Extract dsound.dll and dsound.ini from the ZIP file and place them in <path-to-game> (the same directory where the game executable c3.exe is)

Other information


Technical specs Supported Notes
DirectDraw 5 [citation needed]
[citation needed]
ExecutablePPC16-bit 32-bit 64-bit Notes
Mac OS (Classic)


Middleware Notes
Cutscenes Smacker

System requirements

Operating system (OS) 95
Processor (CPU) Intel Pentium 90 MHz
System memory (RAM) 16 MB
Hard disk drive (HDD) 150 MB
Video card (GPU) 1 MB of VRAM
DirectX 5 compatible
Mac OS
Operating system (OS) 7.6.1
Processor (CPU) PowerPC 601 100 MHz
System memory (RAM) 32 MB
Hard disk drive (HDD) 150 MB
Video card (GPU) SVGA


  1. 1.0 1.1 When running this game without elevated privileges (Run as administrator option), write operations against a location below %PROGRAMFILES%, %PROGRAMDATA%, or %WINDIR% might be redirected to %LOCALAPPDATA%\VirtualStore on Windows Vista and later (more details).
  2. 2.0 2.1 File/folder structure within this directory reflects the path(s) listed for Windows and/or Steam game data (use Wine regedit to access Windows registry paths). Games with Steam Cloud support may store data in ~/.steam/steam/userdata/<user-id>/517790/ in addition to or instead of this directory. The app ID (517790) may differ in some cases. Treat backslashes as forward slashes. See the glossary page for details.


  1. Play Caesar 3 Windowed on Windows 7 - last accessed on May 2023
  2. BraSoft (archived, 2001). - last accessed on May 2023
  3. Sound keeps repeating, page 1 - Forum - - last accessed on May 2023