Preview version of RomTerraria 4.0 (for Terraria 1.3.x) is now available at this post.
Install Launcher | Download Source | FAQs
Welcome to Shacknews, SomethingAwful, ArsTechnica, Quarter To Three, Reddit, PC Gamer, and GameFront. I can't believe over 13,000 people are using this launcher...
Screenshots: Normal Mini-map | Full World Mini-map
Note for those of you on Windows Vista/Windows 7: If you are being told that you may have an illegal copy when you don't AND you've installed Steam into Program Files AND Steam is running, right-click on the executable and run as administrator. The reason why this is happening is that when you just copy it over, it doesn't go into that folder. It goes into VirtualStore. Sorry for the extra security...blame TPB.