UFO: Alien Invasion 2.4 - Squad-based tactical strategy game.. (Free): "
UFO: Alien Invasion is a squad-based tactical strategy game in the tradition of the old X-COM PC games, but with a twist. Our game combines military realism with hard science-fiction and the weirdness of an alien invasion. The carefully constructed turn-based system gives you pin-point control of your squad while maintaining a sense of pace and danger.
- A dozen new maps to battle aliens
- Rescue soldiers in dropships shot down by aliens and retreat from battles
- New particle and sound effects for weapons
- Support for smoke and incendiary effects
- New skirmish options to save squads and respawn aliens
- Battlescape render speed dramatically improved
- Much more...
Mac OS X 10.4.7 or later
(Via MacUpdate - Mac OS X.)