Hi everyone! I'm happy to present my editor extension which I think will be useful to you: Panic Button http://u3d.as/hpe Basically, it solves what you encounter when you accidentally enter an infinite loop during development. When it happens, the Unity editor is frozen and you cannot do anything - the Stop/Pause buttons are unresponsive as well as the option to save your project or close Unity properly. When the Panic Button is installed, fortunately all you have to do is to press it (Shift+Escape by default), and the faulty script is aborted, the game is paused, and Unity is immediately responsive again. It also prints a stack trace in the console, allowing you to locate the infinite loop easily. So now, when you encounter this problem, all you have to do is to simply press the panic button - that's all, problem solved instantly. Watch the video below to see it in action! This functionality was requested here on the feature requests forum : http://feedback.unity3d.com/suggestions/editor-panic-button-for-infinit There had to be a better way to handle this issue, so that's why I created this tool to help you save time while you are coding and debugging. And I’ve implemented the ideas discussed in the link above, such as: Pausing the game and printing a stack trace Support for game scripts and editor scripts Optional watchdog timer to abort the game after a few seconds of freezing You can get Panic Button on the Asset Store here. Price : $10 I hope that you will enjoy it, and I'd be happy to know what you think about it! Comments, questions, bug reports, or feature requests are welcome - I'm here to help. Thanks!