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The only Source Ports I can find for RoTT that run on Mac are for much older versions of OSX that don't run on my version (Lion).

This may be the version you found but it says it's a universal binary so it should work. But since I only read the topic title first before I posted and then saw you had an OS X build i don't know if this was the one you used. Theoretically this one should work.

It does mention you need the SDL libraries so make sure you get those.

I did check and it runs fine on Yosemite(10.10).

You will need sdl 1.2(not 2.0) and sdlmixer 1.2(not 2.0).
Post edited May 01, 2015 by WhoKnowscs