Jokes aside. It’s an interesting distinction to make. Even though the source code is freely available, it doesn’t mean developers have free reign to do anything they want like they could with open source software. Apart from special circumstances, everything made with the source code will still be mods.
Valve adds "all the Team Fortress 2 client and server game code" to its Source mod tools, letting modders "build completely new games based on TF2" and publish them on Steam (www.gamesradar.com) angielski