This page is a wiki. Please login or create an account to begin editing.

Sid Meier's Alpha Centauri

Your rating: None Average: 4.3 (11 votes)
Year released:
[www].se [ftp].se [mirror].us [mirror].de
SidMeiersAlphaCentauri.sit (513.29 MB)
MD5: c6e8d88a0f17f6d7ab7a47a4b2dc4592
For System 7.0 - 7.6 - Mac OS X
[www].se [ftp].se [mirror].us [mirror].de
SMAC15Update.sit_.hqx (1.43 MB)
MD5: dd7facd0ccc1d6032b21979a945f871e
For System 7.0 - 7.6 - Mac OS X
[www].se [ftp].se [mirror].us [mirror].de
Alpha_Centauri_1.5.2.sit-binhex.hqx (2.06 MB)
MD5: e1ee3030358fb781a80c8a4197b09dd8
For System 7.0 - 7.6 - Mac OS X
[www].se [ftp].se [mirror].us [mirror].de
SMAC_Carbon_b3.sit (3.12 MB)
MD5: ce865d9fb5cf668342ce2bc27118d456
For System 7.0 - 7.6 - Mac OS X
[www].se [ftp].se [mirror].us [mirror].de
SMAC_Carbon_nocd.sitx (1.51 MB)
MD5: fbd1f7361e3787a12cd1a3c75c12ab8e
For System 7.0 - 7.6 - Mac OS X
[www].se [ftp].se [mirror].us [mirror].de
This game works with: SheepShaver,

Sid Meier's Alpha Centauri (sometimes abbreviated to SMAC or Alpha Centauri) is a 4X turn-based strategic computer game created by Brian Reynolds and Sid Meier under the auspices of Firaxis Games in 1999.

The story entails the colonization of a planet in the Alpha Centauri star system. It picks up where Meier and Reynolds' earlier titles, Civilization I and Civilization II, left off. An expansion pack called Sid Meier's Alien Crossfire (aka SMACX or just SMAX) was also released. It has been described as 'Sim City meets Dune'.

A note about the downloads available above:
Updates available through Alpha Centauri 2 Forum

GameRanger support: 1.0+
GameRanger crossplay: No.

See also: Sid Meier's Alien Crossfire, Grogmaster Blog/Playing Alpha Centauri on Mac OS X 10.6

Architecture: PPC PPC (Carbonized)

This is a Mac-only CD-ROM.

System Requirements:

Mac OS 7.6 or later
A PowerPC Macintosh, 180MHz 603 or better
32 Megabytes of free memory (you may need to enable virtual memory)
A monitor and video card capable of 800x600 at 256 colors

Bug fixes/Changes for Alpha Centauri v1.5.2:


pc297's picture
by pc297 - 2021, January 31 - 1:21am


I have uploaded the version I cracked using this very procedure Smile

3371-Alpha's picture
by 3371-Alpha - 2016, August 11 - 9:48pm

pc297, I can't find the string you mentioned. I can find the offset, but the string I'm suppose to replace is nowhere to be found. I'm using the 0xED hex editor.
Also, I notice the system volume automatically maxes when you run the carbon app, anyone know how to disable that? It's annoying.

axfelix's picture
by axfelix - 2013, August 18 - 5:39am

has anyone still got the OS9 no-cd patch? otherwise, I was able to find an external link to this which included the carbon patch and got it running in both OS9 on an iMac G3 and Snow Leopard on a first-gen Macbook, so I'm happy!

pc297's picture
by pc297 - 2012, October 22 - 3:00am

Works great in OS9, however in OSX it requires the OSX Carbon patch and image to be mounted.

The patch is at the following adress:;sa=view;down=10

However, after examining what the original no-cd crack for OS9 does (using windiff), here are the hex values to change to play WITHOUT having the disk image mounted.

Open your favorite hex editor (hexfiend is a good one), and open SMAC Carbon (from the above patch)

go to offset 1e210


82 00 0c 38 60 00 00 48


82 00 0c 38 60 00 01 48

and this should work like a charm without the disk image, exactly like when using the old no cd patch in OS9!!