Binary RPM packages for Mandriva Linux are available in contribs (cooker-contrib for very new version) ; install them e.g. with URPMI (type "urpmi urpmi.setup; urpmisetup" as root to configure media sources if needed).
Binary .DEB packages for Debian Linux ou Ubuntu Linux are available in testing and unstable, and on DuckCorp (thanks to Duck :-).
For Gentoo (thanks to Guillaum and Arne Babenhauserheide :-) :
$ echo dev-python/soya >> /etc/portage/package.keywords/gamedev $ emerge soya # For AMD 64 bits, add: $ echo dev-python/pyopenal >> /etc/portage/package.keywords/gamedev
Ports for FreeBSD are available (thanks to Acardenas :-).
Development version can be downloaded from the Subversion by getting the soya directory.
Old 0.13 windows versions are available there (thanks to Atomekk, Thomas Paviot and Dunk!).