The stand-alone version of Gish is a 54mb downloadable .zip that does
not include a traditional installer, and therefore installation is
a manual process of unzipping the game archive into an already prepared
bottle, and then creating a launcher for the game itself -- see the
tips&tricks here for help with that. Game runs very well, (at least as
well as the native linux port), but a silver medal for now until I get
some more playtime/testing done...
Cheers!