Oopsie
"found under the 'Tools' tab in Stream"
Stream?
Game developer Valve has launched the Portal 2 Authoring Tools beta, so avid designers can get their hands dirty creating their own custom maps of the game. The kit, which includes the setup that Valve used to make Portal 2, allows users to create singleplayer and co-op maps as well as 3D models, sound effects and music. …
now I'm gonna live like GlaDOS and find ways to perplex and baffle victims into early and hopefully comedically entertaining demises!
It beats taking up a hobby, like cloning, I suppose. And gives me a chance to do something creative with lemons...