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You need to download 2.5Assist from AA25.org to play AA now, You don't need to register just pick a name and type it in when prompted.

Use the mac version on PowerPC and the Windows version on Intels using bootcamp or parallels.

www.aa25.org
 
I am very excited to see this thread resurrected! AA 2.5 was a game I used to play religiously back in the day. Still many years later, no game compares to its teamwork-based tactical and strategic FPS gameplay.
Is it possibile for me to play this on Snow Leopard? How do I go about it? What do I need to download?
 
With snow leopard you cannot use the powerpc mac version, You must use the windows version. To do this you will need parallels, vmware etc... software that lets you run windows software on your mac and also supports direct3d-opengl accelleration.
 
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