Mod talk:Toparia/@comment-5433398-20120826103719/@comment-5454326-20120828101204

Yeah, that's probably a good idea. If you have game launcher installed, you should just be able to literally dump the contents of the Toparia .zip into your steam install folder and it should work straight out of the box.

Some familiarity with game launcher is useful, but IIRC that's a self-installing .exe that gives you a new UI for starting the game when you launch Terraria. If you haven't used it before, click "add .gli" and find the Toparia.exe file (actually, it should already be in the list since the last few versions, but it's easy enough to add) - then select Toparia and click "launch game".