The Leadwerks editor only works in windows, but the games you make work in Linux using wine. I've had no problem getting a game.exe to work in ubuntu You can even use Lua with the engine.exe. I have tried Unity, UDK and T3D and I still find Leadwerks the most easy to use. The others have great tools for all sorts of things but I find programming quicker and easy to learn in leadwerks.