Sid Meier's Alpha Centauri Demo
Found the first human colonies on an alien world in the Macintosh demo of Brian Reynolds' and Sid Meier's science-fiction strategy game.
Firaxis Games, 1999
Download Sid Meier's Alpha Centauri Demo
Make planetfall
Choose a faction and build your first bases on Planet in this 100-turn demo.
Click OK on the introduction, choose Quick Start, then OK on the Planetfall briefing and base-name prompts. Move units with the keypad or mouse, and use Turn Complete to end your turn.
License
Licensing information recorded for this game archive. These terms are separate from the Systemless runtime and website licenses.
Game archive
- License
- Maintainer-accepted freely distributed promotional demo
- Rights holder
- Firaxis Games / Electronic Arts; Aspyr Media
- Redistribution
- Recorded as permitted
Permission
Hosting was accepted by the Systemless maintainer on 1 November 2026 under the policy for unchanged, freely circulated promotional demos. The unchanged demo appeared on at least 19 period Macintosh magazine cover discs. The bundled documents contain no explicit redistribution grant or restriction. Preserve the complete unchanged archive and remove it if a rights holder objects.
Notes
PowerPC demo 1.4b6 limited to a 100-turn single-player game with up to 10 bases and technologies to level 5.
Sources
Screenshots, plugins and other files may have different terms. See their individual catalogue records in the repository source.